I was mad flirtin with his girlfriend, I know her kinda well and I know she would take it if I gave it to her. Anyways he saw my name in her phone and started texting me asking who I was and stuff so I was messing around with him and then he said he was gonna beat my ass. Then today he sees me from far away when I'm outside and just kinda stares at me but doesn't confront. He's two years younger than me though, so I really don't want to fight him(me 17, him 15). Me: 6'1" 180lbs Him: 5'7" 135 at the most What should I do?