My boyfriend and I have been living together for over a year and we have a 3 year old son and a 3 month old daughter. We seem like a decent family but for some reason he has not popped the question yet. He considers me his wife and even refers to me as his wife or fiance when speaking to other, but neither is official. I am starting to think that he is not serious about the relationship we have built together or maybe he is still not sure about me.