I've been seeing this person for 5 years and I just found out from his computer that he is cheating?

I've been in a relationship for such a long time with this guy. He is a MORMON and he has been cheating on me ever since I know him. I found all the proof I needed on his computer. I want to leave him and I don't know how because I still love him so much.

Well, it seems as though his love for you isn't the same as your love for him is.. Maybe, try to work things out. If things go down hill, well.. Just keep your chin up. You seem like a good person, being with this person for so long and commiting yourself to him. I'm sure you will find true love, or work things out.