Help on Boyfriends friend pleasee ?

ok so me and my boyfriend have been going out for 3 years and were in year 12. Ive known his friend for as long as ive known my boyfriend and im not sure wheather he likes me or not but i mean you guys can have your own opinion as to what you think. anyways this is what he does once, i took off my school jumper and becasue its a white shirt underneath i was wearing a peach coloured bra and he asked me ' your bra's pink underneath' and then he just grabs my strap and pulls it. He also works out and when im around sometimes he pulls his shirt up in front of me with his other friends there my boyfriend is clueless as to what is going on and he always gives me this look like as to what i might be thinking. there are times where he randomly pulls my bow out of my hair. Once me and my boyfriend were making out and he was throwing pens at me ( dont know if thats relevant but anyway) i went to a rock concert once with him and my boyfriend and this other friend and we were going to a moshpit and he goes ' dont worry i'll be around to help you if you get hurt '. sometimes he touches me on my hands and he stroked my face once. like these are all things that make me wonder ... i mean i really dont want him to like me becasue it could ruin our relationship but i dont know if he had always been scared to tell me becase he does nto want to hurt my relationship and his friends relationship as well as my relationship with my boyfriend