Bf delima

Miranda
Ok so I'm supposed to go to prom with my bf but he can't take me anymore. He doesn't want me to go without him but my friend and I decided to go together as back up dates just is case. His date fell through also so we decided to go. I told my bf and he flipped out entirely screaming at me begging me not to go thinking I'll leave him for my friend (he's bi but mostly into guys) so it wouldn't make sense right? I still want to go. I have my dress and my ticket. I want to make my bf happy tho. He's been really stressed because of home stuff and has tried being controlling but I shut that down. Should I still go and just not tell him I'm going? So we both end up happy? Help please this is a real problem 
Update: thank you ladies! I talked to my boyfriend about it and as long as we hang out that weekend he won't stop me from going to prom! :)