<human>: My ex and I broke up about a week ago. We were on a "break" for a month while she went on a Birthright Israel trip. When she got back, she said she was with someone else and she didn't want to be in a relationship with me anymore. We had been together for almost a year.  

I understand why she didn't want to be with me anymore, we have been having problems connecting and haven't been able to move past our issues. When she would bring up problems, I would ignore them or push the blame onto her. I got so comfortable with our relationship that I took her for granted, and didn't put the effort needed to move past our problems. The worst part is we were so good for each other, but because I was such an insensitive jerk to her she thinks I'm a shallow asshole and doesn't want anything to do with me. 

I understand that now, and I tried telling her but she is completely checked out. I tried writing her a poem and getting her gifts to show her that I care and want to be a better boyfriend to her, but it was too late. She's moved on, and I'm left heartbroken. I haven't been able to focus on my classes, get sleep, etc. 

The problem is that we have a lot of mutual friends. She lives with people that she met through me, and now I'm struggling with how to cope with this. I feel not only have I lost her, but I'm losing my friend circle as well. 

How do I deal with this? It's consuming my life at the moment. How can I show her that I want and can be a better person to her? And how do I deal with our mutual friends?

Provide a brief overview of the text.
<bot>: Ex and  I recently broke up, trying to show her that I want to be a better boyfriend to her. Also would like advice on how to deal with our mutual friends scenario.