Been dating for 5 over years. Every weekend, holidays but not Christmas, live around 90 minutes away from each other.
He has adult children. Every birthday he goes for meal birthday celebration with ex wife, adult child and partner to celebrate. Feels odd. Always done it. Ex wife has no partner so they all get together.
I meet up with my adult child and partner but with him and not my ex husband to celebrate. All get on but don't feel the need to just mum and dad and child each time since we've all moved on.
Aibu