The only mistake I did in life was saying " I Do." Was it really a mistake?

My name is Byun Baekhyun. My stepbrother's name is Park Chanyeol. I'm the captain of my school's varsity soccer team and I have good grades, more or less. My stepbrother has a "below average" IQ of 65. He's been home-schooled for the majority of his life. Yes, he's mentally retarded. Intellectually disabled. Cognitively handicapped. Whatever you call it. He doesn't do much with his life but water the plants at our family's florist shop and try to solve second grade math problems. He still counts on his fingers. Life's been different, to say the least, ever since he moved in with us. My name is Byun Baekhyun and I want my stupid stepbrother to disappear.

I regret everything.. I regret not doing anything..

Chanyeol wanted a divorce. Baekhyun asked for a week.