Coming out????

I have no idea how to tell my boyfriend I’m pan. But I also don’t want to come out in general, because I feel like I shouldn’t have to tell anyone just like if I was straight. I feel like I should be upfront with him about it though. But how do tell your bf that you don’t just like guys, you like guys and girls and trans guys and trans girls and non-binary people and literally anything else anyone could identify as? He’s really nice and would probably be accepting, but he’s pretty self conscious and gets worried that he fucked up a lot, and I feel like telling him would freak him out because then anyone could “steal me away.” He’s not the jealous type, but still.