My sister has been with her boyfriend for 4 years. He has three children from a previous relationship. They live together.
She's never met the kids, he sees them every other weekend (he travels to them, 3 hours away) and he takes them on holiday twice a year.
He was getting divorced from the kid's mum when he met my sister - that divorce is still being 'sorted' because it's tricky.
AIBU to think this is massively unusual and he's lying? I can't stand him, though, so my judgement is clouded.