"...it looks like he only calls me only when he is drunk/high/horny. Is it a good sign ??" Seriously? What would you consider a bad sign?
There's no real interest on either side, otherwise one of you would have opened your mouth and asked out the other. I met a guy, we had our first date after 4 days, in a relationship after 3 months and still together. You've not progressed after 9 months!