Will never understand how some people end up feeling sorry for this bitch and her sob story, cheated on him for so long, he was just there as a back up, she didn't want him mingling with other girls too, wanted to push pregnancy on him with a child that wouldn't even be his, and didn't even have the decency to not do it on his birthday at least.
Yuri is one of the worst female characters ever, I don't even like Kudo either tbh.
Empathy, for the most part.
Yuri picked Kido up as an "assurance bf", thinking that as long as he get to do her, he'd be fine
Unfortunately for her, Kido is a hopelessly naive dude. He showered her with so much love and affection that some where along the line, she started to have feelings for him.
By that point, she already realized how screw up she was, and there was no saving the situation.
Torn between love and lust, she decide to have both. As we can see, how's that turn out for her.
Past 2 chapters, you can see she's actually feel remorse for her actions but I think the fear of losing Kido prevent her from coming clean.