This mf that regressed you're talking about never had grown into her adulthood in both past lives, never had a proper guardian to guide her, to say the least. Only one's were monica, who died when she turned 10 anf mama, who was teaching her the alley's was of survival, not as a decent human being (due to the need of their position/situation)
You cant really expect her to be mature and extremely rational like a full grown adult.

Honestly can't stand the FL. Mf regressed multiple times just to stay embarrassment as fuck LOL. Monica’s fucked up for kidnapping her, but NGL she still pulls off the mother role better. I'm fucking dropping this dogshit manhwa.