I'm starting to feel sorry for Jang Yoon-jeong's mother now.

I mean, she could live comfortably, so why does she live like that? Doesn't she find her own life painful?
If she had just stayed out of everything, I feel like Jang Yoon-jeong would have ensured she lived a luxurious life on her own.
Instead, she tried to do things on her own, messed up, and blew through all of Jang Yoon-jeong's money, and then because of fights regarding her daughter, the money stopped flowing.
In the end, even after going to prison and going through all sorts of things, she still hasn't learned her lesson and continues to live like that.
She has a winning lottery ticket much better than a 1st prize jackpot right in front of her, but she's tearing it up herself and choosing a more painful life.
Why does she act like that??