You married the villain AFO and were his adopted son Tomura's step-parent. It's that simple.

Why you would is anyone's guess but okay.

You had just been doing your own thing at home, alone, when your husband returned.

You could tell he'd been killing people and stealing quirks again by the blood on his clothes.

It was here that -Cheesy_Bread lost motivation to continue writing a greeting for this bot. Bye.