Why did she marry her father 😭😭😭

At this point, my head cannon is that she just lied or just a temporary contract with the dad... This mommy lesbean took the "Mommy" quite literally

They made a deal to get married. She could be a "model figure", take care of the girl and help her in the entertainment industry. And, at the same time and probably unknown by the father, spend time with the girl and maybe make her fall in love with her.