I have to agree with the ones who say they make quilts to be used. I donate quilts to Project Linus and I imagine each one being chewed on by some child who needs to do that. In fact, I truly hope that each one of my quilts ends up in tattered rags...that way, I know it provided the comfort it needed to when it needed to.
Now I'll agree that this situation is a little different, however..your friend is using the quilt you gave them. Who are we to say how anyone can "use" the gifts we give them....afterall....we did give it away ...and you probably hoped she would use & enjoy it, not put it away in a closet right?