Aah, I'm so sorry that had to happen to you too, oh, I so know how you feel, it hurts sooo much, and the best advice people can give is "don't cry over spilt milk, try to get over it", like that's going to help the feeling go away. Many hugs

What you describe is what happened in my case. I only recently worked out that the girl I was speaking of did like me initially, all the signs were there, but of course, I saw nothing. I obviously then came off as rude and rejecting, she took it to heart, and has of course made the decision long ago to cut me, a rude asshole, out of her life, so my pleas to be friends again just fell on deaf, and offended, disgusted and proud ears. I worked out she had a life of rejection too for some reason, and I think she was quite damaged herself, so my apparent rejection probably had quite an effect on her, up to the point of hatred and vengefulness I suppose. I don't know.

I hope things can improve for you, and so much faster than it took for me.