DH had a weekday off which was also an inset day for DS1, so I thought we could spend some time together without the other DCs around.
DS needed new clothes so I took him out shopping while DH was at gym (new hobby, but that's another thread!), agreeing to go swimming together later - an idea suggested by DH.
I didn't know what time I would be back and told him to just do his gym thing and we'd see him whenever we got back.
DH came home from gym with wet trunks, having already been swimming, asking what time I was taking DS there.
AIBU to be annoyed at his selfish view on life?