have you ever thought of maybe he has malice towards you for 'leaving' and/or now he feels he has to be the man of the house and he doesn't want to 'abondon his mother too'... these could be some very real scenarios, me, i grew up without either parent, i still hold malice in my heart towards them for it, and i won't even be able to let it go, just some things to think about. my dad never even said he was sorry to me for lettting me grow up without him in my life, i hated him for it, and hated him more for not even acknowledging he could of done more to be there...