<human>: He smoked heavily many years ago, but hasn't smoked since. I live where it is legal and I would like to try it once every few months or so. I had one puff, but I'd like to try it a bit more. 

He gets unreasonably mad when I bring it up. He claims that it is ridiculous to smoke when I'm "doing nothing". He says it's ridiculous to do it in the house. It's ridiculous to do it by myself (he doesn't want to smoke -- that's fine. I am a loner and don't like being around people for very long). Etc etc. He has compared me to a 16 year old multiple times because I am eager to try it. Yet he took me to the dispensary as a surprise a few days ago. 

Since I've only smoked once, I need his assistance (hence why I'm asking him about it). 

I have tried to ask him what his issue is, both gently and angrily, but he never gives me an answer. He just stonewalls me. Am I going to let pot ruin our relationship? No. I'm not going to "choose between" them, but I am just so frustrated that he won't give me a straight answer as to why he gets to irritated. 

I know this is childish. He won't talk to me, but he has taken measures to get me to try pot before, so I am confused.

Can you condense the text into a few key points?
<bot>: fiance encouraged me to try pot before, took me to the dispensary, now he gets extremely irritable when I want to try it and won't tell me why.