AIO: He (M20) took me (F18) to a Jehovah’s Witness meeting without telling me

We have been dating for like 2 months. He’s really sweet and spoils me. However I’m still irked and something feels off and I just can’t let it go. Yesterday we hung out, and when I brought it up again, he shut it down. He somehow makes me think it’s nothing and changes the subject and I don’t even notice it. I don’t want to keep nagging him, but I’m still not satisfied. My friends say I overthink and ruin good things, but I can’t let it go I’m still upset it happened but I don’t know if I’m over doing it. I promise you I’m not discriminating his religion it’s just weird. This whole thing is. Am I overreacting? I’m not confrontational I just need advice

Also throw away