Well, this is an assumption, but it could have started as Cocaine ( sniffing) – it’s same substance mixed up differently. Usually they try crack as it’s cheaper! Could be that, but then again only he can answer all those questions you have. However, addicts lie. It’s crap situation you’re in and i know how hard it is. I’ve been there! You will get thru this eventually. I hate drugs, absolutely destroys everything!
It changes them into people we no longer recognize I understand that. And they become monsters/ selfish monsters.
I’m here if you need to talk. Al another are good support also if you require additional support