Intrusive thinking

During the height of limerence, thoughts of the limerent object (or person) are at once persistent, involuntary and intrusive. Limerence is first and foremost a condition of cognitive obsession. All events, associations, stimuli, and experiences return thoughts to the limerent object with unnerving consistency.

The constant thoughts about the limerent object define all other experiences. If a certain thought has no previous connection with the limerent object, immediately one is made. Limerent fantasy is unsatisfactory unless rooted in reality, because the fantasizer may want the fantasy to seem realistic and somewhat possible.

Fantasies that are concerned with far-fetched ideas are usually dropped by the fantasizer. Sometimes it is retrospective; actual events are replayed from memory with great vividness. This form predominates when what is viewed as evidence of possible reciprocation can be re-experienced (a kind of selective or revisionist history).

Otherwise, the long fantasy is anticipatory; it begins in the everyday world and climaxes at the attainment of the limerent goal. A limerent fantasy can also involve an unusual, often tragic, event.

The long fantasies form bridges between the limerent's ordinary life and that intensely desired ecstatic moment. The duration and complexity of a fantasy depend on the availability of time and freedom from distractions. The bliss of the imagined moment of consummation is greater when events imagined to precede it are possible.

In fact they often represent grave departures from the probable. Not always is it entirely pleasant, and when rejection seems likely the thoughts focus on despair, sometimes to the point of suicide. The pleasantness or unpleasantness of the state seems almost unrelated to the intensity of the reaction.

Although the direction of feeling, i.e. happy versus unhappy, shifts rapidly, the intensity of intrusive and involuntary thinking alters less rapidly, and alters only in response to an accumulation of experiences with the particular limerent object.

Fantasies are occasionally dreamed by the one experiencing limerence. Dreams give out strong emotion and happiness when experienced, but often end with despair when the subject awakens. Dreams can reawaken strong feelings toward the limerent object after the feelings have declined.

Fear of rejection

Along with the emphasis on positive qualities perceived in the limerent object, and preoccupation with the hope for return of feelings, there is a fear that limerence will be met by the very opposite of reciprocation: rejection. Considerable self-doubt and uncertainty is experienced and it causes pain, but also enhances desire to a certain extent.

However in most cases, this is what helps to eventually destroy the limerence if a suitably long period of time has passed without reciprocation.

Limerent fear of rejection is usually confined to shyness in the presence of the limerent object, but it can also spread to situations involving other potential limerent objects, though generally it does not affect other spheres of life.

Although it appears that limerence blossoms under some forms of adversity, extreme caution and shyness may prevent a relationship from occurring, even when both parties are interested. This results from a fear of exposing one's undesirable characteristics to the limerent object.

Physical effects

The physiological correlations of limerence are heart palpitations, trembling, pallor, flushing, pupil dilation and general weakness. Awkwardness, stuttering, shyness, confusion predominate at the behavioral level, dizziness, Syncope (Fainting/Passing out), Illness (Sickness, dizziness, headaches, etc.), and loss of appetite.

There is apprehension, nervousness, and anxiety due to terrible worry that any action may bring about disaster. Many of the commonly associated physiological reactions are the result of the limerent fear. Some people however may find that these effects come most strongly either immediately at or some time after contact with the object of limerence, and this is accompanied with an acute feeling of ecstasy or despair, depending on the turn of events beforehand.

The super-sensitivity that is heightened by fear of rejection can get in the way of interpreting the limerent object's body language and lead to inaction and wasted opportunities. Body signals may be emitted that confuse and interfere with attaining the limerent object.

A condition of sustained alertness, a heightening of awareness and an enormous fund of energy to deploy in pursuit of the limerent aim is developed. The sensation of limerence is felt in the midpoint of the chest, bottom of the throat, guts, or in some cases in the abdominal region. This can be interpreted as ecstasy at times of mutuality, but its presence is most noticeable during despair at times of rejection.

Limerent reaction

The limerent reaction is a composite reaction; that is, it actually describes a unique series of reactions. These reactions occur only where misperceptions meet adversity in the context of a romance. Perhaps because of this unique specificity, limerent reactions can be uniquely quantified and predicted according to the schema described below.

Involvement increases if obstacles are externally imposed or if the limerent object’s feelings are doubted. Only if the limerent object were to be revealed as highly undesirable might limerence subside. The presence of some degree of doubt causes the intensity of the feelings to rise further. The stage is reached at which the reaction is virtually impossible to dislodge.

This adversity may be superficial or deep, internal or external, so that an individual may generate deep adversity where none exists. Also "romance," as it were, need not be present in any genuine way for a limerent reaction to proceed.

The course of limerence results in a more intrusive thinking pattern. This thinking pattern is an expectant and often joyous period with the initial focusing on the limerent object’s admirable qualities; crystallization. Then, under appropriate conditions of hope and uncertainty, the limerence intensifies further.

With evidence of reciprocation (real or imagined) from the limerent object, a state of extreme pleasure, even euphoria, is enjoyed. Thoughts are mainly occupied with considering and reconsidering what is attractive in the limerent object, replaying whatever events may have thus far transpired with the limerent object, and appreciating personal qualities perceived as possibly having sparked interest in the limerent object.

At peak crystallization, almost all waking thoughts revolve around the limerent object. After this peak, the feelings eventually decline.

Fantasies are preferred to virtually any other activity with the exception of activities that are believed to help obtain the limerent object, and activities that involve actually being in the presence of the limerent object. The motivation to attain a "relationship" continues to intensify so long as a proper mix of hope and uncertainty exist.

Tennov estimates, based on both questionnaire and interview data, that the average limerent reaction duration, from the moment of initiation until a feeling of neutrality is reached, is approximately three years. The extremes may be as brief as a few weeks or as long as several decades. When limerence is brief, maximum intensity may not have been attained.

Limerence generally lasts about four months, but further studies on unrequited limerence have suggested longer durations.