Remember that suicidal thoughts come about as an attempt to ease the pain and nothing else; I've been there. Try new hobbies and you'll be surprised that a subculture exists right under your nose, just like your dancing culture which will allow you to meet new people.
I picked up motorcycling and it changed my life for the better because 1) its the most fun thing I've ever done and 2) there are some really high caliber people who do this sport, just had to find them.
Best of luck and I know its difficult to see now but life can be better than now and even before when you were married. My current quality of life would have been unimaginable two years ago; and here I am enjoying the fruits of an idea to get out of my norm and try a new thing. Try something new and if you don't find it enjoyable, try something else.
If you ever feel the need, feel free to email me (apextrader_NOSPAM_@yahoo) You know what to omit and add
Chin up my friend, you deserve happiness.