About a month before my ex and I broke up, things started to get pretty different... mainly on his end. Perhaps I was putting too much value on what he was bringing too the relationship, but honestly he was changing the way he was tomorrow.

I didn't want to believe it and kept telling him about what I thought and he continued to deny it. However, he did admit that because when things got bad, I started to give up which resulted in part of him wanting to be alone and no longer in the relationship. He didn't seem to care about what I said anymore, and stopped sharing the little things in his life with me. Funny incidents.. or a specific class he had enjoyed. We never talked about sex anymore

This was a long distance relationship, and when I went to his university to visit him, things were noticeably different. I could no longer see the love in his eyes when he looked at me.
The plane ride back home together was unbearable. He didn't look at me once, just kept his headphones on (it was a 4 hour plane ride). He didn't put his hand on my leg, or take his headphones off to talk at any point.

A day after returning home we decided to end it. He didn't cry or anything... only I did of course.

He didn't even want breakup sex! I felt like an idiot for offering it!! I mean I'm the girl... that's not supposed to be me getting turned down there!

I suspect there was another girl. He always hungout with her and when we brokeup one time they had a thing (before we got back together obviously). I wish I had just left and not stuck around for that whole awful month. Now I always just feel like a stupid idiot who watched him fall out of love with me, and waited around for that to change. Now when we run into each other, he hardly acknowledges me. I'm so embarrassed and wish part of him would just miss me or something.

I don't know how I made him fall out of love with me. I really don't.

How do I get over this? And cope with everything. And get rid of all this regret/anger/confusion!

Here's what you do... do you feel regret? Do you feel anger? Do you feel hurt and wronged? Well... GOOD. Focus on that feeling because that means you are reacting and that honestly you can't feel that way forever. Time will smooth out the crinkles and you'll feel fine as life goes on and you realize that being as angry as you are now in two weeks will keep you from feeling as happy as you could be in two weeks.

You're going to hurt and feel pain. But don't be frightened by it, you'll get over it when you get over it and someone who deserves you and wants you to get over it will come along too