How do I fix my friendship with my bestfriend/crush.

So today I fell out with my best friend(who is a guy,I’m a girl)
They had recently become very distant with me and had not been hanging out with me recently. He used to be someone I could turn too and recently when I had called to talk about something he’d hang up the phone saying he’s too busy, which hes never done before. and also wouldn’t hang out with our group of friends and the reason for that is because they are now in a relationship.

Sad thing is, is i got really upset by it because I liked him a lot. We had slept together a couple times in the past and I guess my feelings for him were stronger then I thought. I had told him how I felt after he said he was in a relationship and I feel I’ve now messed our friendship up over it because I am very hurt by it. And because of the way he had been acting lately. Made me more upset then I think I should of been.

Ive said to him that I would like to not speak for a couple days and that it’s sad that we may never be as close as we once was. But I also wished him the best with his gf. But I know deep down I’ve ruined our friendship by sharing how I feel and for saying that I’m hurt etc.

How do I fix this or what can I do?