You have already answered your questions. If a man introduces you to his family within 4 to 6 months of a relationship it is a good sign that there is real love there. Your boyfriend is probably thinking somewhere along line of yeppie! yum!, yum! Why should buy the milk when I can get it for free. He is just not ready to marry right now and it sounds like he has his life all mapped out and eventually he well dump you and move on. I would suggest that if he is getting sex from you on a regular basis that he won't want to dump you anytime soon or at least until he meet a traditional wife and even then who know he may keep you on. If I were you I would move on cause as long as you are giving him his yum, yum he won't be going anywhere.