Break ups

I'm currently going through a rough break up. I was with my boyfriend for two and a half years until I made a mistake and cheated on him. I wasn't getting the love I was giving and all I wanted was to feel happy. I didn't think about the consequences and didn't consider how it would hurt my boyfriend. This happened two months ago and I just can't get over it.. I've tried so hard but I end up crying every day over it. I want him back so bad but I don't know if he will ever accept me again. Does anyone else feel this way?