Need help identifying and knowing how to care for plant
This plant was gifted to me by a wonderful old gentleman who is unfortunately suffering from cancer. It belonged to his girlfriend who passed away after her own battle with cancer a few years ago. Needless to say, it would break my heart to not be able to take care of this guy. I have been able to nurse back to health all of the other babies he gave me but this one hasn’t changed much.
As you can see, it has long leaves that flop straight out and down (although I am not sure if they are doing that due to so long of not being taken care of properly). The previous owner had it somewhat tied to a stick which I haven’t messed with but it isn’t really doing anything, and I am not sure if it even should be tied upright. Its leaves have serrated spike-like edges along both sides.
All help identifying and advice how to care for this guy would be very appreciated! Thank you!