I bought fabric like that one time, a cheapy from Hobby Lobby when I was just learning, and for a donation quilt. Never made that mistake again, what a head ache..
So trash it, stuff a dog bed, mop the kitchen floor, wipe the down the wind shield. I could not feel good about the quilt just knowing it was in there...
And I have bought fabric on sale at Wal Mart and had it perform wonderful, would not hesitate to buy more if I could find something that similar.