Relationship advice HELP!?

I moved down to el pao TX about a year a go with my boyfriend. About 3 months ago we broke up and he moved back to Reno NV, and got with his ex, and moved her into her house. During those three months we barely talked at all. I met this other guy, and we started to get very close. My ex started txting me telling me he missed me and that he ddnt love the gurl he was with and that he was gunna break up with her to b with me. We were together for almost 2 years before we broke up, so of course when he told me he wanted me bak i was all to excited and quick to take him bak. He broke up with his gf and now wants me to move back to reno to be with him. I want to be with him, but i don't want to go back to the same constant fighting everyday again, and i don't want to lose this guy i've been seeing. I don't want to lose this new guy, but i want to be with my ex and seee if things have changed and start a family together This new guy treats me great never yells at me and we hardly ever fight. I'm supposeed to move back in 4 days. HELP PLEASE