You were definitely meant to find it... like everyone else I'm so glad you did! :-)
I feel sorry for your dil though, for not appreciating it. It sounds like she honestly doesn't realise what such a quilt involves, and means to you and your family. So maybe this is a good teaching opportunity! :-)
My sister is much the same, things MUST go with her decor, they must all be co-ordinated, and to a certain standard. I'm the opposite, for me it must have a story, or character. I keep it in mind whenever I make something for her, or give a gift. That's just how she is.