I don't think I would make her another one. I have just given a few quilts out. Any one of them get sold or given to some one else and that person will never get another one from me.
You do the labor for the one you intend it for, for them to use! Not for them to profit or blithely just give away. Not considering all the hard work you put into it. The thought for the material / pattern / money or time to make it.
Would not happen again...