Wife wants to meet ex-bf

We’re married for 10 years now and my wife wants to go to her high school reunion where her ex-boyfriend will be. I told her she shouldn’t go, and she says that I have trust issues and that she’s not planning to do anything. I don’t understand why she wants to go see her ex-boyfriend from high school. Is this something that people are cool about?

Maybe… She just wants to go to her high school reunion? Sadly, no TC mentioned - we need both his and the ex-bf’s to make an informed decision, of course 🙃