AITAH for wanting to go to smoke a spliff with a friend although i have a bf.

I [F19] have a boyf [M20] weve been together for 8 months now ,

i recently began to speak to a friend of mine that ive known since highschool. we have a platonic friendship and it has always stayed that way. my friend , invited me whenever to come smoke.

i asked my boyfriend about this in which he responds with ,
“ no , you’re not smoking with another guy. do i look like a cuck ? “

AITAH in this situation if i was to go see my mate ? i dont believe so as theres nothing going on between us two. this is a friend ive known for years now. but i can understand my bfs perspective on this and why he responded that way however , i dont think its that deep 😅