If you post some pictures, we could tell you if it's cat butt.
First, it's good that you downsized. You may need to downsize one more size just to be safe.
Second, you should never use crescents to stretch.
Stop washing your ears so much. Go get some sea salt from your local grocer and mix 1/4th ts in 8 oz of warm water. Soak your lobes twice a day for several minutes each. Rinse.
Order some Emu Oil. When your ears aren't crusty anymore, start massaging with that stuff to break up scar tissue.
You shouldn't stretch again for six months.
This was a little setback, but hopefully you learned from your mistakes.