Ex-husbands new wife inviting me to the kids events on their weekends. Annoyed.?

Try to act like a grown up......it actually might help. She could probably give a rat's as* about you. She is doing this for all the children concerned............this is NOT about you. Showing the children that you can all be at the same function, or in the same house, will do them all a world of good in seeing that their parents are not horrible bitter fighting-screaming people. Perhaps think about that and not think about how YOU feel.