Just reading up on your thread. I don't get the there is no future, just the it is to late. Try and take this stuff in stride. It is only over when you want it to be.
I used to become confused, disappointed, hurt ect by the things my W said and did. I was finally able to detach myself from the situation and keep moving forward.
Since then my W has been hurt and jealous of it all. Sometimes guilty I am sure. My W also has depression and self-esteem issues. So it is a whole different animal.
Look at what is going on from a standpoint of looking in on someone else from the outside without the emotions. Hard to do, hard to follow. My W still confuses me sometimes.
It is how it is. Find stuff to keep busy and enjoy life as much as you can right now.
A warrior does not give up on what he loves, he finds the love in what he does