I’ve posted about my situation previously .
split from my boys dad . He sees them for one night / day every other week .
found out that last week when he had his night he went and did overtime at work (he works at the airport so normally does nights) his brother came and babysat.
Aibu that he should not do this as it’s meant to be his time with his kids? As he only has them once a fortnight?
or is this completely fine and I’m being overally sensitive ?