well. i am no to really advise but the obvious is to put your foot down, and give him a lesson to learn from. for example, if he is now being mean etc then kick him out. Tell him he needs to find a job and that you guys cant live forever with your mom. & he needs to straighten his act up. let him go, but as a test, dont tell him that though. and if he really loves your daughter & you and wants a better life, then he will come back and do what he is suppose to do, if not, hes garbage, believe me, i have one too. Good luck sweety.. i know it sucks.. & its so hard but when there is a child involved you must put your daughter PRIORITY before it gets worst, AND I AM in the situation now ;(