![](https://pic1.mangapicgallery.com/r/avatar/be/u1782204_50x50.jpg?2)
He didn't leave her for his girlfriend at first bcs they got back together til a little bit later he started saying he wanted to leave her or smthn like that and then he went abroad and came BK for a little bit then he left and I never saw him in the webtoon again and Shee and her daughter was alone right through her graduations, her first job,her first boyfriend, her marriage and goodbyes that man even though he could've still been in the kid's life bcs he knew of her existence he wasn't after she started primary school and having a wife, girlfriend or whatever was no excuse and he broke up with his gf I think
Spoiler alert!!!
There's a movie a movie about this in the end she became a single mom