Girl, he might say Its «temporary» but id bet the hair on my head that its permanent, anyone who brings up something like that with their significant other either a) is actually attracted to the person they brought up and is shortsighted/ have no respect for their significant other [why else openly ask for something that sick] or b) Is a manipulating abusive a-hole who want to make you feel insecure so that he can [in his mind] more easily keep you under his thumb .. Either way, your boyfriend is a jerk , you deserve better, and considering how he basically has no respect or appreciation for you theres no need for you to waste your precious time trying to make it work with him when he doesnt care enough about you to keep you from hurting and being disloyal towards you (at all is one thing but this is a step worse, its your bestfriend!!) Id advice run, take some time to heal and try again to flnd someone who treats you right when you feel ready. But you know best what feels right

Wish you the best