Not sure what to do from here.
	
	
		My brother and I have always been very very close.  He is five years younger than I am and it was always my responsibility to watch him and make sure he was safe.   He recently was married to a girl who is not close to any of her family.  She dose not talk to he parents until she wants something.  They have two young children, that my family and I have helped to raise.  The children were with me and my husband for three to four days/nights a week.  I took them to the sitter and my mother would pick them up, then their mother would pick them up from there.  The problems started when my 'sister-in- law" started to be friendly with a man from work.  She swears that nothing happened, but my brother found a valentine from this man under their mattress.  Then he asked her to stop being friends with this man, she was always texting him or calling him on the phone, even when the whole family went on a vacation for them to get married, she would be texting this guy constantly.  Any way things finally blew up and my brother swore to me he was leaving her and that they would have to try to raise the kids together, but separate.  I tried to help him as best I could, offering him a place to stay and so on.  Now I have been informed that they are going to stay together and he loves her and she is his life.  I also have found out that she is now blaming me for this problem.  She has stated that, due to my constantly talking to my brother I have ailennated her from him, and was always trying to break them up.  She also said that I am no longer allowed to see the children, or talk to them.  I realise that she is only trying to put the blame off on to me.  Now it is no longer an issue that she was fooling around.  I feel so badly about all of this and I'm not sure what to do.  I have been staying away from evey one, but my mother is trying to push my brother and I together, this only makes his wife argrier, then she takes it out on him.  Part of me wants to basically suck it up and talk to my brother and let him deal with the fall out, the other part just wants to never see him or his family again. I need som advice, my family is so close, we have never gone through any thing like this.