Would I be wrong if..?

I'm pregnant now by my current boyfriend. He's been in prison about 6 mnths now... Well, he won't be home til at least 2yrs. And Im debating on if I should go back to my ex - who I was in a long term relationship with before my Childs father came along.. I think I'm jus getting lonely and bored.... But I love both of them,! I don't want to hurt my babys dad, but he's hurting me being gone and so far away. I kno it's out of his abd my control- but i can't lie I'm sooo lonely and don't kno if i could wait 2(+) years for him..........because what if that ends up being wasted waiting time nd we aren't compatable anymore.??!?