I know my marriage is over. But I emotionally invested seven years of my life into that woman. She was the one I turned to when I needed someone to talk to; when I was lonely or upset.
I can assure you there is not a single person on this planet who knows me better than she does.
I am reminded of the song Against All Odds (Take A Look At Me Now):
How can I just let you walk away?
Just let you leave without a trace?
When I stand here taking every breath with you, ohoo
You're the only one who really knew me at all
How can you just walk away from me?
When all I can do is watch you leave?
Cuz we shared the laughter and the pain
and even shared the tears
You're the only one who really knew me at all
Crap, I always thought that song was depressing...even more so now.
Strive for at least a civil relationship.
You will find another. Probably right here on FR. ;-).
You need to stop for a second, take a look at what's RIGHT in your life, not what's wrong. You've still got friends; you've still got health; you've still got chances. And you've still got God.
Take this thing on face to face. No compromises, no running away.
You WILL get through it.