Not sure where you are, here in the UK we have a service called The Samaritans (http://www.samaritans.org/) so not sure if there's a similar service, these people are trained to give you the best help and advice that they can, and someone trained but detached from the specifics may be what's best for you - I've not gone through this myself, but have supported my wife and ex-partners through similar bouts of depression - I'm going to drop you a mail as well.