How should I manage my situation?

I am not sure what a love marriage is but I assume you are not married legally. I would not get married. He heeds to grow up and cut the strings. If he is so influenced by his mommy, then let her have him. He should be supporting you and his child. He is putting mommy first and that is not a good sign. He also is being influenced by her which mean he has not grown up yet. I would not marry him.