In relationships things develop, good, bad and indifferent. You have your idea of what you want, I suspect your partner has an opposite idea to what you have. The fact that he has not fully committed himself to you and still has another address tells me that.
What you need to find out is what do you want?. He works, he contributes to your home and life style, he shares your bed and must be good company to a point. Are you happy to stay like this suspecting that he will nevere truly commit to you and could one day walk out on you, or do you realise that you want someone to commit to you for the rest of your life, that special person thats makes you feel lovely and warm inside and who does want to commit to you, live with you in your house and grow old together.
It's your life, you choose what you want. But choices have consequences.