Hey Alison   I am so sorry that you and your fiance are going through this rough time right now.  It is a really good thing you are doing by reaching out.   There are some support groups on-line to help and the first link I will give you is the support group right here on Health Central for depression.   There is also a good group specifically for loved ones of a person who suffers from depression.  You may find this group here on yahoo groups.   I have also heard good things about Depression Tribe...some of my friends participate there.   Hope this helps some.   Please let us know how things are going for both you and your fiance.    Thank you for your question.