I am so sorry you have had to go through this mess. But you are not the only one.
Depression can be prevented with the newer drugs, go see your doctor, tell the truth, do not try and be the big strong man, which you are, but the fact is that we can all be affected by these events
I went throuh a similiar period and i was able to get over it, for the better.
My wife left me after thirty years and I was devastated plus I lost
my business at the same time.
My wife never liked sailing.
With the newer drugs to solve my depression, I went on an Internet
dating site. I presented myself as i am, (then 58) an said i wanted a wowen to share my passion of cruising, Not only did I find the most wonderful women. She bought the boat.
Think positive, but you must get over your depression which you can. Go see a doctor. life can be better.