I'm 21 and my bf is 23 and we've been together for a year and a half. Is it too early to think about marriage? We've talked about it and we've come to the conclusion that he's resisting thinking about the three major things we talk about (marriage, living together, and having a baby. Not in that order). He said so himself when I told him that he seems to shut down when we talk about them. He says he wants to marry me but I'm not sure if he really does in the long run. I'm just wondering what is an appropriate time in our relationship to start thinking about our future.