<human>: Can you condense the text into three sentences or less?

So I've had my girlfriend since high school and we are both young adults now. The first 2 years were great and we were very intimate and close.

Nowadays, I feel uncomfortable with being sexually intimate with her because I am no longer really attracted to her and that really upsets her. (my sex drive has also been severely hampered by my dickhole anti-depressant medication).

She's still madly in love with me to a point that she breaks down and cries if I don't show her enough affection or if I give her hints at how I feel in the relationship. It's gotten to a point where, sure, I love her, mainly through consequence of time being with her but I essentially don't want to do anything with her and I feel the relationship is just a major weight on my life.

I also live, not too far, about 1.5hrs away from her and only see her once a week. I've found that I really don't think about her or miss her.

She's kind of crazy too. She breaks down very easily or snaps at me for not being good enough for her or whatever. It seems cruel but I'm now basically in the relationship because me being with her makes her happy and she blatantly states that her world will crumble without me. I feel trapped in a relationship prison. It's so hard to break up with her because she acts as if it will make her go insane or something.

I don't really know what to do.
<bot>: I've had a long term gf since late high school. I don't feel affection for her anymore but my existence basically keeps her sanity at bay.