Just thinking of you today. Hope you can keep your resolve if that is what you are wanting. Your brother wants what is best for you and he knows W is making you unhappy right now. But it will be up to you to decide whether or not you want her in your life in the long run. Actually, she will always be in your life b/c of the kiddies. So one way or another, you will learn to deal with her. Hopefully (if you want) she can get a grip on herself and you can get things back on track with time.....
