gay or bi?

so i’ve been identifying as gay for years, have a pride flag in my room, and my friends have only seen me date women and often refer to me as a raging lesbian. but i know that i am at least slightly attracted to men. ive been talking to this guy for a little while and he just asked me out but i’m definitely struggling on how to talk to my friends about this. i know sexuality is fluid and that it’s okay to change what you identify as.

my friends think i’m a lot more masculine than i am i think as well? when it’s a casual thing i tend to wear jeans a tshirt or flannel. so seeing that side of me dating a guy will definitely make things weird i guess?