When my ex and I got divorced so that he could marry his lover, my daughter was devastated. She was only 8. However, although he was a terrible excuse for a husband he was her father. Over the years, I have always been civil to him and his wife (now his ex). It has gained me lots. She is very nice and thoughtful with my daughter (now 40) and her family and has even stayed at my house when she returns from a business trip and needs a break before she returns home 250 miles further. You never know what life will be bringing you. Be nice, help the daughter with the quilt. You can do this, and you can do it well.