I am 25 years old and am currently dating a 41 year old, who will be 42 in June.. We have been dating for almost 4 years, and he hasn't talked about marriage with me. I have asked him a few times about it but I think it thinks I'm just playing around, I would like to be married, and have children one day, I'm starting to think that I'm wasting my time, what should I do?