Yes, this is what my sister says as well. I'm in the US and our employer has a counseling plan. My sister says, make excues when she comes to my cubicle. Yes, she is always seeking my approval. She will announce some awful plan, come to my desk, and ask what I think. I say I disapprove, and so far that works. But it's not right really. I'm not the professional. And she is selfish now. There is nothing in her life except her crisis. She lost maybe 20 pounds. She writes me at 3 a.m. and is not sleeping. Thanks for all your help. I just don't want to open the paper and find her dead.
I cannot put myself in your position and therefore cannot really understand, but it sounds like you are in a most awkward position - particularly if you feel obligated to your co-worker. Chalky is undoubtedly correct when she mentions listening but this, long term, could interfere with your own work. In view of the fact that your employer has a counseling service, why don't you have a talk with their staff? Depending on legal contingencies you may have to keep the name of your fellow worker out of any discussion, but at least you may receive 'proper' advice (and by that please do not think that I am denigrating Chalky's input.)
Tina] If you are concerned for her life then she definitely needs professional help. I think you have demonstrated the characteristics of a good listener - but you are not responsible for her situation. She has to be, so it may help to explain this to her in a kindly and assertive way. She may thank you for it.
I would echo what Dujon said in his last post - counsellors can be extremely useful even if you aren't the one who is in direct need of their services. It allows one to perspectivise the situation. Obviously the best case scenario is if somehow your colleague manages to sort her situation out; the worst case scenario is if this doesn't happen and you get dragged down with it. I found a counsellor was enormously helpful in staving off the latter when I was in a tricky situation.