<human>: So, I ended up with an emotionally fragile and at times explosive young woman. I'm her first relationship that lasted more than a couple of months and by all accounts have had a positive influence on her life.

However I am now at the point where the conversations are vapid and superficial, the sex too infrequent, and my interest just overall waning. In short, I'm not getting what I need and I am very certain that I won't get what I need from her, and need a change.

That said I don't know how to break up with my girlfriend. Previous breakups have led to severe depression, self-harm, risky sexual activities, all that. She has disrupted her academics over this before.  She is in school right now and I would hate to throw her off into a spiral of depression, once again squandering a school year.

I am pretty much her only support system. She doesn't have any close friends despite my best efforts to encourage her to keep the friends she has over the past year. 

I don't know what to do. I care about her but I'm not in love with her and feel that her presence in my life is doing me more harm than good. I don't know how to break up in this case.

Can you condense the text into a few key points?
<bot>: I need to break up with my gf, but I'm worried she'll lose her mind and ruin her college year