P can't drive and has no intention of learning despite really needing to learn as he depends massively on other people to get him to places and makes commitments to things he needs to drive for, assuming someone will give a lift.
Today, I don't have room to get everyone in the car who wants to go to also get P and his daughter in my car.
I have my kids this weekend and they are coming plus one of their girlfriends who P finds rude. She is mostly socially awkward and can be a bit rude at times. I don't really think it's intentional.
P would usually come with me but I said he will have to find another lift as there's no room. There are usually about 3 other people who would be going who he could go with. He has found another lift.
I feel that I should prioritise my kid and the girlfriend as he's my kid.
Am I wrong?
P is upset that the extra seat needed is being taken by the girlfriend who he doesn't like. If it was another of my kids that he does like he wouldn't mind he said.
I've decided not to go altogether now as I really can't be bothered with it all. He just said 'ok' .
Now I'm upset over it. 
Who's the dick? Me. I feel it might be me.