Why can't I get over mine and my boyfriend's cheating?

well, I love my boyfrirend too bits, been with him 6 month and I'd do anythink for him.
but in them 6 months I cheated on him with my ex and he knew about it. but he sed he wasnt with anyone then I found that he had a girl friend
and when I told his girlfriend for her sake
he denied it evan tho I had proof in converstaions that he said he was single:|
and evan thoo after al the liesi stil realy love him $ since I went threw a lot with him
why cant I just get on with my life? and be happy with my boyfriend?!

Simple- you're not satisfied in your relationship. People who are happy in loving trusting relationships don't cheat. Simple as that.

If you're both straying, what's the point in sticking around?

noo my boyfriend diddn't cheat! my ex did on his girlfriend with me but told me that he was single! lol

cause you still have deep feelings for your ex but he's a loser becuase he lies...guys who lie are people who are affraid of telling the truth so they cover it up with a lie to hope it'll make theyre lives better when really theyre living in a fantasy land and you were just a part of his fantasy.
I hope that makes sence to you, stick with your boyfriend if you love him and try to forget.
you have to forgive yourself before you can move on.
GoodLuck.