Me and ex split last year. I left him because i was unhappy with the relationship. We have 2 small children. We agreed that he would see them every other weekend as he lives an hour away and doesn't have a car (but he can drive and has access to his brother in laws car). I said I would do both journeys UNTIL he got a car. It's been a year and i'm still doing it. AIBU to refuse to do it any longer?