David, I'd recommend you look into articles and books on co-parenting. Right now it looks like you are heading to a long and painful existence with the kids caught as victims in the fight.
Take the pick up issue... You are asking your w to handle pick up, what right then do you have to dictate who does it? She is the parent too btw... Just b/c you're paying for it doesn't matter a hill of beans. You ask her to do something and she agrees to do it then you don't really get to dictate the terms. Now obviously if there is a safety issue or a concern that some new bf is abusive or whatever that's different, but just bc a guy is dating your w or xw doesn't make him bad or evil.
Should she be able to swallow her pride and get the kids? Yes. But if she doesn't you can't make her. And absolutely don't use the kids as a weapon or a pawn in issues. Co-parenting requires respect for the other, so you're going to have to find a way to get there.
Married 6 together 8 Me:38 W:31 second marriage for both SS12, SD10, S6 Bomb: 9/8/11 (day before our 5 yr ann) W moved out: 2/18/12 D final: 11/12/12 Share S 50/50. Spend as much time as I can with SS & SD