Is he getting random s or am i turning him on?

soo im a teenager and in the last four days my bf has been like rubbing on me when were kissing and you no being a guy and yesterday we were with another guy friend when we were hanging out and they were lik punching eachother in the (i dnt no..dont ask lol there weird 16 yr olds.) and it was right after we were touchin eachother and stuff and thn my bfs like i have a random ***** nd ur punching it!!! and then today after w were doing stuff he had a hard on and i just acted like i didnt notice lol so ya is he like getting turned on or arethey random s?? thanks. nd please no one give tht lil talk about how not to do stuff with your bf :) xoxo