Please give me some advice. Quick!!

Basically I have a boyfriend that I met online but lives quite close to me. I made sure everything was safe before we met and me n him even brought a friend each (they are now dating 😹😉) but he’s different in person, not in a dangerous way but not the person I started dating and I don’t know if I like it so I’m thinking of breaking up with him but I’m not sure, he’s outgoing and funny and loud and sweet and genuinely just a confident person on message and FaceTime but in real life he’s v introvert and quiet.

I talked to my boy best mate about it at school n later he said he liked me so now I’m confused. Please help