How to start rebuilding? - 2

[Mozza]

The simple answer is that your W started detaching months ago, if not more. Also, you facilitated the process by pursuing and begging, which is not attractive. Now, you're just starting to detach and, on top of it, she makes herself very attractive by being unattainable and with OM. Of course, it's going to be hard for you until you focus elsewhere. The main reason you're not attracted to this girl at work is likely that your attachment to your W is still very strong, but I suspect that the fact that she's 'throwing herself at you" is not helping. Be patient with yourself.