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

I know this is very cliche but...

She said a few days ago we gotta take a break. Lat night I told her on the phone I want to be with her and that no one attracts me the way she does. She told me she doesn't want that and that I shouldn't think about a relationship anymore, but that we can still talk from time to time as friends. I said I'd rather go no contact because I can't control my feelings for her. 

She ignores me nonchalantly and no fucks given from her part because there will always be someone else waiting in line to give her attention of one sort or another.

We got here because of my inability to cope with an open relationship. She slept with someone else last week and I felt hurt. What hurt me most was that she told me she talked with that girl in a few hours more deeply than she did with me in a few months. It crushed me tbh and it annoyed her that it crushed me. 

Right now I am sure she wants nothing to do with me anymore but I feel dead inside and I don't know how to cope with this. It feels like I lost an amazing person; granted, someone who couldn't put up with me and my insecurities. I find it hard to focus on anything else now and I'm afraid this feeling won't go away too fast...
<bot>: Crush doesn't want to continue a relationship with me. I feel heartbroken and alone. I wanna move past this and get her out of my mind but I don't know how. Any advice please?