@Views6,
I think personally, you have to evaluate your life.
You don't have many friends.
No one really to talk to.
"You always want what you can't have"
The guy she ended up with in your opinion, isn't worth anything.
Your wife, was not chosen for love rather you settled.
You see your career as having a successful life.
Your wife "knows" you aren't totally in love with her.
On a good note you understand a bit about a "soul".
Maybe you need to soul search yourself and give to your wife, as you should be doing, with love and find that because if the other girl was meant to be, she would have been.
I suspect it's a case of " you couldn't have her" and so you want her.
You're married now, have been for 10 years, the person who needs you most given you don't have anyone else, is her.