Your baby is not a baby anymore. More like an adolescent. Needs to explore the world.
Seriously, I think you need to up-pot. Are you still keeping it inside in a humidity bin? If so you'll need to gradually expose it to more air so your leaves won't drop. That's a big plant to still have in a humidity bin.
If it's in a humidity bin, maybe up-potting and exposing to outside air might be too much too quick.
Not much, but that's all I've got.