bestfriend is uncomfortable with my sexuality.?

i recently came out to my bestfriend as a lesbian. i have never ever acted weirdly or inappropriately towards her (for context). we have been bestfriends for 4 years so i didn’t think she would be shocked (because none of my family were) but she was so shocked. she hasn’t spoken to me in 2 days now. she’s ignored my messages? i’m confused because she’s not homophobic she’s never ever said anything to make me feel like she wouldn’t be ok with it? i’m trying so hard to put myself in her shoes but i genuinely don’t understand why she’s being so

cold. i get that it’s hard and maybe “shocking”? but it doesn’t change anything for us. i made that very clear. i would never ever overstep a boundary like that with any of my friends. i just want to know if i should try and think of it from her perspective more or if she is being out of order?