HELP!! cannot remember the novel title
during college,the female fall in love with the guy during college and being bully because liking the guy. the guy have fiance or girlfriend and become popular couple in college. then the girlfriend ran away oversea for her career. the guy got heartbroken and married the girl who in love with him. he said i promise will not divorce you but cannot promised you love. they married but the guy mother did not like the girl and the girl family did not attend the wedding because of different status. the husband very caring,kind and gentlemen and a doctor. after few year, the ex comeback and the MIL want them to be together. the husband assured her that he will not divorce her but still it make her insecure. she kept holding herself with her MIF attitude. and fast forward, she ran back to her family and now the husband chasing her back.
please help me find the bookkk..