<human>: Can you provide a brief overview of the text?

I've been best friends with this girl since I was 17 or so.

No romantic relationship ever developed, as I was with another girl at the time. Afterwards however, I developed feelings for her that she didn't return. We ended up not talking for a year or so.

Recently we started talking again after she broke up with her boyfriend of a year. They went on a "break" a few months ago.

Since then, we got close again. That developed further into a romantic relationship. Like, we spend an awful lot of time together, cuddle, make out. The usual sort of stuff that happens with that.

Here's the thing though, she's told me she's hung up on this guy, but I don't care. I think I've fallen for her, and I just want to enjoy the time I have with her, even though I feel like she's going to break my heart.

I've even said to her that if she ends up back with him, I just want her to be happy.

I don't know if someone could offer some help here. I'm just hurting really bad and don't know what to do with myself.
<bot>: Started something up with my friend. She's hung up on another guy. I know she's inevitably going to go back to him and break my heart in the process but I don't care and just want her to be happy.