Just found out my partner is cheating on me in... a sauna

You might remember me from the post I made a while ago saying I had a fear of my partner cheating because he traveled a lot for work. Well, we've been together for 6 months. We are basically a couple but haven't talked about exclusivity. However, I stopped using hookup apps.When I had the fear I created a new profile and downloaded a fake GPS app and put myself in LA (where he is visiting) and after successfully pinpointing his profile and exact location, I found out he's currently at a sauna out of all places... I am devastated. I'm on Truvada and we have unprotected sex and we've never touched the subject that we're hooking up with other men.I'm obviously not proud of my stalking methods, but at least I know now.UPDATE: I talked to him from my fake profile, but he was already leaving. I was able to get details. Apparently he got fucked, but thankfully he used a condom.