Help!! love triangle??๐Ÿ˜‚ confused!

okay so this guy Iโ€™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 weโ€™ve talked before heโ€™s not even sent that)...I really feel like he was trying to make me jealous or something...but Iโ€™m talking to one of his friends and now Iโ€™m not sure what to do because I canโ€™t stop thinking about him now heโ€™s sent these pics!!! Do I talk to him about it??