It looked like rot to me too! (I mean, at first I thought it was dry, but it was kind of a wild guess). Only after further inspection (and partially removing all that white dried leaves stuff) I decided it wasn't rot, and I'm not completely sure haha but I think it's not. You were all very helpful! I'm not sure if I did the right thing after cutting though, should I let it dry? Seal it with cinnamon? Right now I have it still soaked in Physan and I'm about to remove it. Not sure if it's because I removed all that dried/dead stuff or because it's wet, but it looks overall better and greener than when I took the pics. I'm a bit more hopeful now, it looked pretty awful. Now it looks like it might have a chance.