The manhwa I'm looking for is a romance straight manhwa, the FL was married to the king, b...

The manhwa I'm looking for is a romance straight manhwa, the FL was married to the king, but dude brought in a side chick, and the side chick think she the main, so the FL divorced the king and went back home to her family.
She has pink &her brother has pink hair also. Her dad has grey. Her brother was the one who picked her up from the palace. And when she got home her father spread out his arms for her to hug him.
The ML is the brother friends he is like tan with blond hair. I think.

Plsssssssss I need to know the name.