I got myself a rubber tree 2 months ago for my birthday, Ruby <3 She started off happy and thriving, even opening a few new leaves, but then it seems like she took a turn for the worse. She started dropping leaves rapidly, and then I noticed that the new leaves stayed curled and don't lay flat like the others. Then I noticed a few of the leaves had yellow/brown spots on them before falling off.
At first I thought I was underwatering, so then gave it more water, then realized that maybe I was overwatering, so I stopped. Then read that rubber trees enjoy humidity and since my apartment is quite dry I started misting her daily. However, she's still dropping leaves.
I am at a loss, not sure what is causing her unhappiness or why this is happening, but I really want to save her! She is in a south facing window that has a decent amount of light, but it's slightly obstructed by the neighboring building.