Is it wrong for me to ask him to stop?

so I didn't text him bcs I was upset so he didn't text me either bcs he says he was sad and upset too. Then i told him that i dont trust him when he says that he's js trying this to figure out if he wants to continue or not and then he got upset but i explained why i wouldn't trust him which is bcs he has said he hates smoking and doesn't want to smoke 3 times and has promised me once that he would never smoke again but broke the promise and told me that i could let go sometimes.(he made the promise on his own i didn't ask him to). Then he says i dont understand him and that this is how things work for him and that he's upset bcs i can't see beyond my own self and keep bringing up stuff from the past.
He then said that he was js asking for one thing which was letting him try it again bcs its been on his mind for a long time and wanted to get it over w and even then i made him feel so shitty.
Idek what to say now.

Is it wrong for me to ask him to stop?
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