Is this a red flag??

Talking to guy for 3 months, we’ve met up a few times due to long distance. He’s to visit end of this week but now I have some red flags. Early on he was on a jet ski with a girl in her thong bikini and it made me question if something is up as they looked like a couple real tight and cozied up and he claims “oh she’s just a friend, we didn’t do anything”. I said okay and that was that. Well fast forward 1 1/2 months later she’s with him again last night hanging out with other friends but then he blocked me from seeing his instagram story so I couldn’t see it. My friend follows him and showed me a video of them together she posted to her story that he posted (reshare) so when I went to look I couldn’t. I’m getting suspicious vibes honestly because I know this girl posts her bare breasts/nipples and butt cheeks about 75% on her instagram and has me questioning like “dude, you can’t tell me you’re not tempted with her or whatever” but claim you want to see me? Like now I wanna cancel because I don’t want to be part of some roster or distant side piece if you have something in front of you. It makes me not feel “special” or good about myself or feel like I’m competition? Which obviously I ain’t about so I’ll just leave. Because wouldn’t someone who is interested not put themselves in a position to look bad or lose you, let alone not block you from seeing their story so you don’t know what’s up?? 🥴 I should mention this guy is 34 years old…like this feels like games I’d expect from a 25 year old.