My boyfriend broke up with me

Last week on Monday my exboyfriend and I got in a big fight and ended up braking up, his reason for wanting it is because he doesn't love me anymore and doesn't want to be with me anymore, when 20 minutes before he told me he loved me. I gave this guy my everything, my love, all my attention, and we lost our viginity to eachother. I don't understand because he is treating me as if I did something wrong when I didn't, he treats me like if he and I never happened, and it's killing me. I still love him so much.