Dan sure does a good job at delivering the bull... While reading your e-mails I could not help but notice how nice you and my NGF are. The problem is you both get mad at the situation afterwards......the situation that you helped create. I had a talk about something similar with NGF last night. You do not need to talk to Dan about boundaries, you just need to put yours in place and stick to them. If it is his night, it is his night. If Dan can't drive, then have his parents or someone else come get them. You let him off the hook too easy. I am sure you want to be with your kids as much as possible so unless you had something specific to do or just wanted some time off, why even sweat the fact that he did not have the kids last night. We all know that Dan pretty much does what he wants, either you accept it or make him stick to the plan....even if he is not well enough to drive....make someone else pick them up! You do not need a meeting for that.