Haha, thanks everyone for the suggestion and good laugh! I didn't reply and deleted his text, I don't want to give him the satisfaction if he is just looking for attention, and even if he meant well, I don't want to betray my own feelings by sending a congrats, so no reply is more than enough. Let bygones be bygones.
To the poster who said I'm lonely and want to be in quarantine with someone like him. No, I meant being alone in isolation makes it harder to cope with anger. But being alone is still better than with the wrong company. I don't want him, I was just triggered, you know, the feeling that you have already taken a step back from conflicts (I could have done something to embarrass them when they got married), but the aggressor persisted to rub it in your face. It's just too much.