My partner and I have been together for 11 years and practicing polyamory for almost 3. He recently started seeing a new person and invited her to do something that I’ve been asking him to do for years- but he’s always said no to me. (For context, I’ve asked him to go see the Christmas lights at the botanical garden like every year but he always says he doesn’t want to).

He brought it up to me and said that he realized he made a mistake and wanted to plan something with me too. He said he didn’t realize until the day after he invited her that it wasn’t cool. I really appreciate him acknowledging that it wasn’t cool, but I still feel like an afterthought and I still feel like he shouldn’t have asked her to begin with.

TLDR: Is it reasonable for me to be upset that my partner invited his new partner to do something that he’s said no to doing with me for years?