Marriage?????

My boyfriend and I have been together for 5 years we have almost 3 years living together and we have a 2year old daughter. I have asked him if he would ever consider marrying me but he says it doesn't really matter to him if we do or not because we are together and we don't need a paper. But I tell him that if he truly loves me he would be proud to make me his wife and he says if that's what I want ok but it doesn't really matter to him that either way his already with me since we have a kid what more of a commitment .... Am I wrong for wanting marriage should I just leave it the way he is or does he not care for me enough?