First of all you need to take a deep breath and realize that both you and she have precious little control over this thing right now. You need to concentrate on getting home and being with her. I dont know if she is on meds but if not meds will help a lot to take away the HIGH highs and the LOW lows. Once she gets stablized than you two can start to work on this together. SHe is goign to need all your love and support and you should no right up front, even that may not be enough. You have to have hope and faith that she will get better but it is a long and hard road ahead of you and there will be lots of slips.
When we are out of control we honestly have very little control of everything, feelings, emotions, actions, compulsions, the works. You need to give her time to "reset" as my wife calls it, and she will need lots of help to find her way back to the place where she feels normal again. Just hang in there this will pass. You have the strenght to do this, but my advice is get lots of sleep, eat right and prepare for a long run because this disease isnt a sprint, its a life long marathon.
Good luck and if you need more support post back here.