My girlfriend (27f) called me (28m) disrespectful for planning to go on holiday with friends
When I was at university I had a close friendship group with the people I lived with. There were 4 guys and two girls.
We all planned to go on holiday together to celebrate finishing but it didn’t happen for various reasons. We're all from different cities and have different schedules and commitments so it has been impossible to all get together.
One of the guys made a group chat and mentioned us all going on the holiday and said we should do it this summer. We all agreed and started looking at hotels, hostels, airbnbs etc. I told my gf what we were planning and she asked if she was invited.
I said no since it was just the friendship group and no one is bringing their partners. She said she found it weird I was going on holiday without her and that she thinks she should be invited. I said no again and explained again what the trip was for.
She repeated that she thinks she should be coming or that I shouldn't be going but I just told her there's nothing wrong with going on holiday without your partner. She said I was being disrespectful towards her by going on holiday with other women.
Does anyone have any advice on how best to approach this or have any other perspectives on it?
tl;dr I’m planning to go on holiday with friends. My girlfriend is asking me disrespectful because she isn’t invited and is arguing I shouldn’t be going.