This is very tricky question, I believe a man is not entitled to make a choice between choosing from the woman he's married to, and his mother. Biblically a man is entitled to his wife after they've been married but this doesn't meant he's no longer entitled to recognizing his mother's role they only thing is that they relationship has become extended and he'll have to recognise them according to their various roles in his life.

In some western African culture especially Nigeria it's believed that a man should chose who he's endeared to, however this shouldn't be the case, they play important roles in his life which can never be switched or ignored