After 2 months, I [27F] still miss my ex [28M], I feel so pathetic

My last boyfriend left me suddenly 2 months ago. I loved him and I thought he was the one. I thought he felt the same way. He said he was crazy about me and talked about a future together. He was so sweet to me and seemed happy to be with me. But then he unexpectedly told me he didn't love me and I was the wrong person for him.

I have been trying to heal and I thought I was improving. I unfriended him after he broke up with me, but just now I saw a post from another friend who tagged him in it, and seeing his name made me cry. I haven't cried over him in a few weeks. I feel pathetic because it was two months ago and we had only been together for a few months. But I was in love with him, and still am. I have never felt so strongly about anyone before, and I don't know if I can feel this way about anyone else again. I have been seeing other people but I always just end up thinking of him. But he has moved on and doesn't care. I don't know if he ever really cared about me.

tl;dr; My boyfriend of only a few months broke up with me suddenly two months ago, and I still can't get over it. I'm still in love with him even though we weren't together very long. Shouldn't I be over it by now? Is there something wrong with me?