My boyfriend just recently allowed his pregnant daughter with 2 year old to move in with him to get her life straight.
It says a lot about a person who is interested in a woman who values taking care of her bambinos.
If this is something you can learn to put up with, then stay with the guy. You have to decide if you can put up with it without ever complaining. Whoever tells you it is has not experienced enough of life to know.
When you are with someone who has all the cards on the table, you are at an advantage. Be thankful that you know everything now to make an informed decision.
It may sound cold but how did she get to a point where she is without resources? i wouldnt be in that type of relationship unless i was already married to the man. You might try reverse psychology- invite her into the room to watch movies. However, I had issues with my MIL(jealousy, immaturity, whatever) that I talked with my husband about prior to marriage and it was never dealt with and now we still deal with those issues.
that 22 yr old little girl has always gotten what she wanted and has always been the way she is acting now. he should be defending you,seting the boundarys,and really letting her grow up by being on her own not taking her under his wing again. It is very sad that she has never been able to get over this- and that is my only concern for you. I have a very good friend who was in a very similar situation.