Well... Please read I need help

My friend has like this guy for a while but she recently said she like him that much anymore. And her crush and I have been talking a lot more. It’s just the more I talk to him the more I think I like him. Like sometimes if I send a mirror pic out as my streaks he will replay it. One time he did that and the pic that I got back was his streaks pic with him standing in front of a mirror with only a towel wrapped around him. But he sent that to most or all of his streaks. Last night he said he would’ve FaceTimed me but he had to get off of his phone. My best friend doesn’t know I like him. But she’s been being a jerk recently and has been slut shaming me bc I used a few mirror pics and sent them to all my streaks. And she only made a big deal out of it bc I have streaks with him and other guys. But I want some advice on how to deal with all of this. Please and thank you. ❤️