Edge won't go away, no matter what I try, and it can't be selected theres a loose edge in my blend file and i tried delete loose, clean up, remove doubles, EVERYTHING. i worked hard on this model and i can't let it go to waste. anyone help?
The edge is a separate object from the rest of the mesh; it appears orange because it was also selected when you entered edit-mode. Tab into object mode, deselect the main object so that the only object selected is the mystery edge, and delete. (X or Delete)