Symptoms of FRS include:
- constantly discussing partner, or bringing up their name in conversations;
- insisting that they 'cannot be apart' or 'will be together forever';
- fears/paranoia/distrust/jealousy about partner's feelings/actions (though on the other hand sufferer may be totally oblivious to signs of deceit);
- insistence that any actions of the partner are without fault. Includes fierce justification or defensiveness;
- couples or sufferers distancing themselves negatively from social circles or activities. For example, opting to stay in rather than go out "like an old married couple";
- sufferers engaging in the activities/behaviors of their partner, despite never having expressed interest in these activities before;
Long-term FRS-based relationships may deteriorate with time, however both may feel as though they are under pressure to stay committed to the relationship. Either party may be directly responsible for this pressure, but it more commonly stems from a feeling of anxiety about being alone (since they have been together so long). This most commonly occurs in couples where both parties suffered from FRS simultaneously.
Jack's friends and family recognise the First Relationship Syndrome immediately, and while trying to be supportive, they warn Jack about counting his chickens before they hatch. After all, he and Jill haven't been together that long.
Jack puts a lot of pressure on Jill, unintentionally. He likes to talk with her about their future - what they will do, where they will live etc. Both Jill and Jack have changed somewhat, since they were young when they first got together and now have different interests. However Jack insists to his friends that he and Jill will be together forever, even when they drift apart. He justifies this sudden wedge between them to his friends/family. He may even blame himself.
Jack eventually moves on, and in subsequent relationships is more relaxed and mature, after identifying that his feelings for Jill were mostly FRS.