I have no idea actually. I think I came across her when she was pregnant with her second daughter. I don't know how she got her following. But there was drama and after with her second baby daddy, all played out of SM. Then she had a few fast relationships where she was all in after 5 minutes. Then she stopped sharing so much. She barely posts anymore. And it's unclear if he ever sees either of her daughters.
Her younger sister also had a bit of breakdown in the last few years and was posting rogue on IG. I don't know how many sisters she has but one sister starting dating the same guy Katrina had dated - like almost immediately after. So that was odd for a little while