Hi Eric
I'm sorry you're in pain and I'm sorry you have to relive it each day by working with this woman.
Broken hearts can take a long time to heal...I think you're pretty much doing all the right things tho...and there's been a few good suggestions here about new hobbies things to do etc.
I hope you find the strength to move on soon, emotionally at least. Then maybe you can look at whether this job and being around this person is worth it...
With respect to alcohol and sobriety - I think you made a wise choice to get sober and stay that way. I had my heart broken and drank over it...I lost years of my life because I was numbing the pain but I wasn't moving on.
Staying sober gives you the very best chance of dealing with all of this and getting to a better place sooner
SR is a good place to be too. You'll find a lot of friends and support here
Welcome
D