By chance I found out that my girlfriend is meeting up with someone next week for lunch (I think - they haven't actually stated why they are meeting up other than it's some sort of celebration for the guy and I know they are the only two that are going to meet).

I haven't had a problem with this guy, I met him about a year ago once and said hi. That's it, the only interaction we've ever had. I have heard about him very infrequently from my girlfriend and now she has a plan to meet him on Monday.

I suppose my problem is that she has told me nothing about it. I don't feel very apprehensive about it but it seems strange that has not said anything about her plans or the fact she is meeting up with him.

Should I say anything, r/redpill? If yes then how should I say it?