Hey SBH. Sorry it's been a bit more difficult lately. I have to agree with the ladies about the OM#1, in that you are simply now at a place to process that situation as you've already done with OM#2.
I believe your reaction is absolutely normal. Occasionally I'll remember something my W said to me during her year of belligerence that was very hurtful, or it was a clue as to what was going on, and it gets me down. I remember it, think about it and get upset, process it, then add it to the frayed bundle of emotional yarn stuck in my chest.
The more time that goes by for me, the more I realize it's time that will help heal all of this junk. Don't push away your emotions, SBH. Experience them, then let them go. Over time it will get easier. Try not to be so hard on yourself.