Should i go? ADVICE HELP

I need advice, so me and my boyfriend broke up last week. During that fine somebody asked me to hang out it was a guy so i said sure but made it VERY CLEAR DO NOT TOUCH ME WE ARE HANGING OUT. We smoked and sat on opposites sides of the room and watched a movie. Great time and absolutely nothing happened. My boyfriend and i got back together, and i told the new guy yeah my boyfriend and are are back together so I’m going to let you know that. I am not single. I told my boyfriend i hung out with someone and told him that i made rhe guy aware I’m not w any funny business but he’s cool to hang out with like definitely has potential to be a great friend. So my boyfriend is hanging with his friends today and I’m not going but my new guy friend asked if i could come to the mall w him and help with a B’Day outfit. Heres my question, I want to go and just hang out AS FRIENDS if he tries ANYTHING I’m out. I love my boyfriend and would never cheat on him, but what gets me is that i don’t want my boyfriend to not trust me. I know where I stand and what I’m going to accept and not. Esp because I met him while we broke up, BUT i have made it clear I’m not interested in anything other than being friends. I have other male friends too, but what do you guys think? I don’t wanna fuck up and my loyalty is with my man. What would you do?