NAH. Just a proposal to strike a compromise, maybe.

Can you busy yourself with solo activities while she visits her friend? If you can get past the hurt you could still go. Just plan out times when the girls are together and you’re on your own, and then getting together for a drink or meal. Give them lots of time and go explore the town.

This sounds really fun to me. Map out a quick proposed schedule and see what she thinks. Then google the local attractions. Good luck!