Clean book. No sex.
She’s young, dating the hero’s brother, he thinks she’s a gold digger. His big plan to reveal her as a gold digger was to seduce her, she got freaked out by being hit on by him because she thought he was super nice up to that point, she tried to jump out of the moving car and was severely injured - misscarriage, face scarred, gripple, cant have children - she drops off the face of the earth.
H has major quilt. He broke up his brother and h, killed their child in car accident. The fiance just ran off because H lied about h, mad at his brother, gets OW preggo and later discovers he never lover her. He never even comes to hospital.
Hero tracks her down years later, determined to make it right, blackmails her into marriage, wants to fix her leg, fix her scars, give her a family. brother since married someone else, but is still around, drama drama drama.
In the end they all make up. Brother is happy with his wife and forgives H. h has her scars and leg operated. She also managed to get pregnant.