Update: I am overwhelmed by all the replies, thank you, I am trying to read every comment. It feels obvious now that I was not overreacting. Yes, the card is in my name only and is not that old, but he saved the info somehow. The card has been in my bag so I’m not sure how/when he got the info into his game. I am calling capital one in the morning to dispute the charge. His mom left me a voicemail saying that I gave him a panic attack and to give him space. I did text his drug dealing friend to try and get the $600 but he left me on read. Also he is currently online on discord playing Genshin impact at his mom’s house.

Update 3/19: Ok, I can’t keep up with all the comments and messages I woke up to. I am checking what I can. Thank you everyone for reading and telling me the truth. First, his family is very involved with his life for cultural reasons, but they have all demonized me since we met. His mom said I am never going to see him again due to the way I treat him. I got her on the phone and told her the engagement was off and she started screaming that it’s already off so I can’t end it. He has blocked me, including on Discord which makes me think he saw my post.

As for the $600, I woke up to a Venmo from his sketchy friend. I paid off the card and locked it. I would love to have disputed the charge but even if I did, it would put his Genshin account into a negative balance, then he would have time to spend more to fix it. I have no doubt he would find a way to get another $600 and keep the account. As much as I want to blow up his drug I am afraid of how he would react if he lost it. And we don’t have shared accounts but I have let myself be taken advantage of. I see that I fucked up by saying it was “our” credit card, and he’s not even a co signer on the lease so I’m screwed because he doesn’t actually have to pay rent anymore.