I have met the strangest dealer!

I got a number for a guy a friend knows. Apparently, he has benzos often. Benzos are my besties. Occasionally I run out of my script, and it'd be nice to have someone to go to when that happens. So, I contacted him a couple times. Each time, he seemed really annoyed. Ok. But I'm going to give you money? lol. Then he contacts me, wants to meet me, says he has something for me. Ok. So I meet him in my parking lot, we make small talk and he can see I'm not a narc. And, he give me a nice sized E (not Xanax, but whatever), I reach to give him money and he says "this is on me" Okey dokey. It was good E. My husband and I had fun. But I contacted him a few days later for more and for xannies and he didn't get back to me--for days! I thought dealers gave a freebie to get people coming back? This dude is confusing!