I hate when someone can’t just decide what they want

How do I react to this because my best friend in the whole world who I love with my whole heart is putting so much aggravation in my body I wanna block her on everything let me give some backstory. I’m bisexual and she says that she’s straight completely straight, but we have fucked multiple times. We have been in a friends with benefits situation before even though we stopped it we always flirt with each other. heck we even both agreed to be in a relationship with each other but it’s just open because at the end of the day we still do mess around with guys. But three days later, she said she was just joking and today she literally just told me that while she was sleeping on the phone with a guy she was having sex dreams about me, but she’s getting uncomfortable and annoyed with the fact that I’m trying to brush over it and not pay too much attention to it because every time I bring us up she says she’s straight and not like that and now she’s sending me Christian videos saying if I don’t believe in God, I’m going to go to hell like which one is it? You’re straight and Christian or you’re dreaming about me and want me to flirt with you. Like?