You & your ex broke up over 3 years ago and you went on to date another guy for a year, which sadly did not work out. So it shouldn't be so devastating to find out that the ex is also dating someone new. You moved on, why shouldn't he? Okay, and then you find out he's having a baby with her, that truly sucks... but remember you left him because after 10 years he didn't want to marry you and you fought incessantly every minute of every day.
I've tried to sympathize & empathize with you because I've been in the almost exact same boat as you but let's be realistic now. You are working in a corporate office environment. I have to sit next to you every single day & have spent the last 5+ years listening to your LOUD and annoying personal phone calls that add up to a total of at least 5 hours per day. You are feeling sad & I get that, but please do not mope around the office every day giving me the "feel bad for me" face. Please do not call out "sick" or leave work early because you aren't mature enough to put your personal issues aside & function at work like an adult. Grow up!!
Lastly, if speaking to either of your exes always makes you feel crappy, STOP calling them or taking their phone calls! And if you must torture yourself by talking to them, please do not torture me in return with your inappropriate & unprofessional work ethics.
~At Wits End Annoyed....