BG, I know how badly that must hurt. I cannot believe the evil in that woman. Take some comfort from the fact that it is not a true family, without you. She is keeping you out because she is afraid of you. Your position is the one of true love and commitment. Hers on the other hand, is only scheming and manipulation.
If you want some comfort, read what the Bible says about the adulteress. It clearly spells out how evil she is.
I know that you are keeping things together for all of the kids that are involved. Be good to yoursel and know that we love you.
Most of us are about as happy as we make up our minds to be.