&gt;That is when she realised my value in her life

So, if that colleague didn't act like a full scale asshole, she would leave you? Is that how low she values you?

Any decent human being who claims love and commitment would support her.

It really disgusting that she judges you based on that low life person **she actually chose** to be with!

She was on the path of ending marriage with you and it was not her decision to stop it, the asshole made this decision.

I'd say you should go to therapy alone and figure out the whole picture and how you feel about it.