My BF and I have been dating over a year.  We are extremely compatible and rarely fight.  We've had minor disagreements and we have worked through them easily.  I have kids from a previous marriage and he has 2 adult children.  The only issue we have is with his adult son who still lives at home.  My bf has been divorced a very long time and has raised his now 27 yr old son for the past 15 years.  The man still has a good relationship with his mom but chose to live with my BF.   He has a mediocre job, no gf, doesn't pay rent and basically lives like a teenager.  His father does everything for him and the son acts like a 15 year old.  The son will not engage me.  He ignores me.  In the past year he has said my name once or twice.  He rarely acknowledges me and will walk into a room and act like I am not even there.  He's not overtly mean to me but he just doesn't give me an ounce of respect.  I've done everything I can to try to establish some foundation with him but I've given up.  My BF has fought with his on many times over this issue but the son refuses to care.   According to my bf, the son has a "hard shell" and it will take time for ME to break his shell.  Yeah, like that will happen.  Anyway, I am not at the point where I don't even want to be in the same room with this grown man.  My bf is very bothered by all of it but is basically incapable of changing the situation.  He enables his son and he is aware of it.  He is trying to change his own behavior but old habits die hard.  While he knows he created this monster, he doesn't know how to change things.  He won't throw him out.  He can't force him to show me respect.  So that leaves me in this terrible place.  This issue has been the one and only thing my bf and I have trouble with.  We agree on everything else.  I am finding it more and more difficult to be around someone who blatantly shows me disrespect.  Will it get easier once this man moves out and is not a constant presence in our lives?  Should I end things now before it gets worse?  I am just at a loss here.  I really love this man but I don't know how to deal with the constant slap in the face from his son.