Maybe you need a heart-to-heart with your mom soon and get everything out in the open. Your father and stepmom should not have said that, but there's no use dwelling on that as it is already done. You are such a good person for being such a wonderful daughter to your dad considering all of the hurt he has caused you. I don't know that I would be as gracious as you, it can't be easy. I will keep you in my thoughts and prayers ((hugs))