I was just telling my husband about your situation. I said "some guys are just *jerks (not really the word I used..), but cocaine only makes them bigger *jerks." Then I said "Cocaine makes everybody shady. You wanna see somebody get shady.. Just throw some cocaine at them." He said "Yeah- it makes people skeevy. You can even feel it on yourself." I said- "Yeah, it's dirty." He said, "Yeah."
So, that's our perspective... I don't know if that's helpful. But, I'm really sorry you got pulled in by this guy. And I'm also sorry that he hurt your self-esteem. That's not right.
I dated a guy with a bad cocaine problem a long time ago. I can relate to how you feel. I'm so glad you got out of it. He's only putting you down because you called him out, and he doesn't want to hear it. But you're right, and you're smart to stay away.
I hope you feel better soon. Try not to let it get you down.