Would you think this was selfish of your partner?
My ex has my dd (14) every other weekend. On these weekends usually my partner and I will do something, maybe an event, a road trip. Sometimes for Saturday and Sunday. Sometimes only Saturday and we chill on Sunday. I go home on the Sunday tea time.
We live in the same town but not together. 6 minutes drive from each other.
A friend has asked if I'd like to go to Edinburgh with her on her birthday weekend in August. It's a weekend that my dd will be at her dads.
My partner has said I'm selfish to go when those are the only weekends we get to spend overnight together.