If your ex were not deliberately trying to get under your skin, it would be hard to deal with. But it is painfully obvious he is trying to get to you! Don't let him. As Kat says, keep your sunny disposition and ignore his nastiness, recognize it for what it really is.
On the other hand, as for dictating to you and lecturing you on the raising of the kids and leading them through spiritual and religious activities, your exH has no room to talk -- at all. (It might be un-Christian and uncharitable of me, but I'd be tempted to tell him to STFU. Hey, somebody needs to say it, although not you, of course. I wish someone would read him the riot act.)
I just wanted to say I know what your going through with in this, and you are entitled to ignore a former spouse if/when they should become abusive. Water off a duck's back is my motto. Some would call that "passive aggressive", but so what?
