The character expresses deep frustration and emotional turmoil regarding a troubled relationship. They feel overwhelmed by the constant games and instability, indicating that the situation has been prolonged to an unbearable extent. The stress inflicted by the other person is so intense that it affects their health and well-being.

In this metaphorical comparison, the other person is likened to a disease, highlighting how toxic and damaging their presence has become. The character is at a breaking point, unable to cope with the emotional swings that accompany the relationship, leading to feelings of sickness both in the presence and absence of the other person.