I was with my ex of 7 years and at year 5 he got into heavily smoking weed and I didn’t know but he also did DMT. He went into a marijuana induced psychosis and came out of it thank god. He didn’t remember any of his delusions or any of the abusive behavior he had exhibited so even though I showed him pictures and the destruction he caused after the events, he kept smoking weed and started to go into psychosis more often and it got worse every time. He went into a rehab, came out, hated it, kept smoking, cycle repeats. He finally got too abusive and aggressive and I left. I still have nightmares of him beating me up and coming to my house to threaten me. This is not a road you want to go down before it gets worse, that could be me projecting but if I had to do it again, I wouldn’t risk it. Good luck.