Poor lamp shade. It was still very useful, but I just couldn't leave the hot glue unattended. (You never should. Says so right on the hot glue label.)
So, this is how I fixed it. I know-- pretty unoriginal to just add ribbon around the edge of the shade, but I already messed it up so badly before that I just couldn't dare to hurt this poor lamp shade any more.Nice and clean. Much better.