It was about this woman who got to live again. She had a son but it was taken away by her husband (white haired I think) and died a lonely death.
Son grew up calling a black haired woman “mom” but went crazy after learning the truth about his real mother. He jailed his father in the room where he (dad) had put his mother. And killed him.
Well, she went to the past and is pregnant! So she makes a contract with her husband of “letting her have her baby” and tells herself that she will not love him again.
Please, someone needs to give FL a hug