ABANDONED. Heroine is a Vet

[Kuntal]

Hi guys i am looking for a book which i read quite a few years back. Here is what i remember about the plot:
-Heroine is a vet
- Hero was married and is now divorced from the heroines sister. He comes back to town with his son
-Hero actually loved heroine but her sister seduced him and so he married her
- heroine did not attend the wedding and lost her virginity with some other guy on the same day
-When the hero returns to town with his son the heroine is dating someone else but they break up as the hero and heroine get back together
-Things get a little complicated when the sister comes there
In the book there is a scene where the sister takes her son to the local dinner where couples inscribe theie initials on the table. But instead of his mothers initials he finds his aunts initals on the table with his dads. Thats when the son realises that his father and aunt were once together..

I really hope that someone can help me find this book. Thanks for your help in advance:)

[Lobstergirl, au gratin]

Kuntal, are you still looking for this book? What is "quite a few years back"? 10? 20?

[Lobstergirl, au gratin]

No response, moving to Abandoned.