<human>: I'll try to keep this as precise as possible. Essentially I've been in three serious relationships in my life, each lasting about ~3 years. In every relationship I've been near infatuated with the girl, that is until we start dating. After some time I become unhappy with being in a relationship and yearn to be alone. However once I'm alone I wish I could be in a relationship. I can have the most perfect, loving, beautiful girl in my life yet this feeling always seems to creep up. I wish I could just be satisfied with who I'm with, but I never am, and it always causes problems. I suppose I'm more or less looking for an explanation about myself or advice from anybody experiencing the same type of ordeal, and how to overcome it.

Could you distill the essence of the text into 1-3 sentences?
<bot>: I want to be single when I'm in a relationship, dating when I'm single. I'm never satisfied and I wish I was different.