Help!! love triangle??😂 confused!

okay so this guy I’ve had a crush on for ages has recently got a gf but he talks to me sometimes and pops up and last night he was sending me pics of his face and naked chest (bearing in mind when we’ve talked before he’s not even sent that)...I really feel like he was trying to make me jealous or something...but I’m talking to one of his friends and now I’m not sure what to do because I can’t stop thinking about him now he’s sent these pics!!! Do I talk to him about it??