I am so very sorry you have this terrible turn of bad luck.
It sure does sound like severe depression and I believe you are doing the right thing in seeking some advice from your IC. However, bear in mind that you really can only help a person if they want help. Be careful about pushing her too much.
There is always hope. After reading SirPrizeMe's thread last week, I thought he was not going to pull himself out of rock bottom, but his post on his thread last night shows that a person in deep depression can indeed turn the corner even when it previously appeared they did not care any more.