It's super easy for me to break up with someone, but the second that they actually move on, I am screaming and crying. It is not a fun experience. I don't know why I break up with them in the first place, but I just do. That's just me, really weirdly.
My personal red flag is probably like wanting to keep arguing I mean I know that I probably won't because I'm not gonna argue with you for no reason especially when I'm wrong but it's a keep arguing so yeah