Is it a joke for a boyfriend to joke like this? Can You Ever Forgive Me?

That depends on the object. If the other person is a netizen he doesn't know, it can be understood that he is talking nonsense. If it's true, at least make it clear: your boyfriend is either 825% or a gangster. I also like to joke with the opposite sex, but I pretend to be very wronged and say: you don't … me! Or politely say: I send you a rose! But I would never say it like your boyfriend did. This is the bottom line. Anyway, this is too much.