Boys boys boys

Okay so I've liked this boy for 3 years and we have been bestfreinds for 3 years aswell, but we dated and broke up because he was too controlling long story short we are taking things slow and 3-4 freinds of mine has said that he has sent them messages with 👅👅💦💦 emojis and sending X'S I don't know what to do because i really do like him but I'm almost 15 so should I stay or should I leave?