Abel is her child but not from the current time line, im the former time line she married hades and had a child with him but hades died and so she didnt want to live anymore since she knew she will kill her child, so she turned time back, more like created a new time line, and since she didnt kill abel, he wasnt part of the "time turning back" part, he grew normaly and so FL asked ML in the new time line to look after abel and then she died and her souls was put into her new body.

Okay so I dropped this years ago I read some spoilers in a novel forum but this manhwa got so SO SO SO BORING AND DRAGGED DROPPED !?? Sorry !! But ?! Did she give birth to Abel ? Or was that her from a different timeline ?! Or maybe was the translation wrong please explain :)