>> I just feel that I can be replaced and his parents cant be..

That is very admirable but in your defense... i.e. as a reason to stay... consider that leaving him might NOT be in his best interest even if you do come between him and his mother. This may be his best opportunity to decide whether he is going to live his life or his mother's life... if you let mom "win" it may make it very hard for him in future to stand up to her.

Listen to him and consider his feelings, but make your decision mostly, if not all, on your own wellbeing in this (and your children).

Bottom line, if this comes between him and his mother, it is his MOTHER'S decision to let that happen. She will try to make your fiance think it is HIS decision but IT IS NOT. She is the one "in control" of the situation (of that aspect of it) and therefore she is the one who holds all the options. It is HER choice whether to love her son enough to want him to be happy, or to be so selfish as to continue to try to run his life.

BTW with regard to my first post... I think the fact that he said that to her is a very good sign that he understands this is important and is willing to fight for his happiness. He at least is willing to take a stand.

Good luck.

------------------------------------
--http://www.idexter.com