I can't love myself

I'm usually a very confident person, I trusted and truly loved my ex. After 2 years of relationship, he cheated on me with some south korean woman he got to know from the internet. He only knew her for 2 weeks. And completely dumped me. He never met her in person and yet she was his priority. I never felt so ugly and lost. I still tried to forgive him, because I truly loved him. But he was just talking down on me, about my body..I never felt so uncomfortable in my body before, because there were never concerns. I work out daily, eat healthy and care for my skin. And yet I would just like to bury myself. It's been almost 3 months since I last masturbated or anything...I still go on dates, but I don't seem to feel anything, sexual or any emotions. It's like I'm not living...Any Advice?