tell me i’m not overreacting

my 20 yr old boyfriend trying to take my 17 yr old brother to watch the new avatar while on shrooms and now my brother is asking me if i can drive them and then pick them back up. i’m fucking livid bc why would my boyfriend try to give that to my brother. they’re already fuckin stoners and i personally don’t even like that but i don’t say anything about it, i don’t ask them to stop or even tell them how i feel about weed but anyways. SHROOMS?! absolutely NOT.