If you ask my opinion on this, I’m going to tell you that I don’t think that she’s doing it out of spite or hatred of her ex. Instead, I think she’s doing it for attention and approval online.
Why else would you post a video of it claiming you do it every day.
I do have one other theory though. When you look at the profile photo of the woman and compare it to the videos, it doesn’t look to be the same girl. I think that this might all be a stunt and she’s using videos of other people and claiming it’s her doing certain things.
Regardless if it’s real or not, it’s amusing and that’s all that people on TikTok really care about. They just want to be entertained and this user is at least doing that.