DP has DSS (11) and DSD (13) from a previous relationship. I have DS (8). DP has always played football every other Saturday and always the weekend he did not have his children. This would typically be from 8am to around 4pm, for training and then matches, and often it goes on even longer if there are drinks or socials arranged afterwards. I didn't mind this as it tied in to when my own DS was with his dad, so I would have the day free to do any leisure activities of my choosing.
At the beginning of the year, for various reasons, my stepson and stepdaughter came to live with us full-time. Since then, my DP has slowly started to play football more, and in the last couple of months has played every Saturday. He's just announced that he will be playing football again this Saturday, leaving the care of all 3 children to me.
AIBU to say I'm fed up and don't want responsibility of three DC all Saturday again, and that he needs to go back to EOW? I feel like I'm being a bit rotten as he does work very hard and does a lot for us throughout the weekdays. I wouldn't mind so much if it was just the morning, but it's literally the entirety of Saturday.