My ex cheated on me too :-( and its not a nice feeling. He cheated on me about a year and a half ago. We stayed together but it was a mistake. He drive me insane. We broke up July of last year and Im barely over it. I can honestly say that I am not over it but I am getting there! We were together 2 and a half years.
What i did was spend more time with friends and go out more, no matter how much it upset me. I also started counselling and found it to be a great help!!!!! Talking about it and getting my feelings out there ahs helped a lot! Avoided him, and all contact! Its so so hard when you love him but its for the best.
I really think counselling would be a good idea for you!
What you need to realise is your better than him and deserve a lot more than a cheating rat!! i bet your self confidence and self esteem are low from all this. Mine is.. And its vital to build this again! I still havent managed this but Il keep trying!!
"No man is worth your tears, and the one who is wont make you cry!" I have been told that several times.. And its true!!!
Good Luck
Jen x