Yep, I still get a sinking feeling as well. I think it's revulsion or something
I saw my ex the other day. My GF and I were headed to a party and had to stop at the store for some fresh shrimp. My ex was just ahead of us as we walked in. I still get that feeling a little. For a second. Until I remember that, hey, I'm not the one that lost their mind, had an affair, walked out on the kids, and harassed my ex ever since like a high-school loser. What the heck do I have to be worried about??
So after the brief moment, I went on about my business. I didn't even notice her stalking us throughout the store. My GF did and only commented on it a few days later.
What I'm getting at is that it's normal that you feel that way (a lot of trauma caused by him) and you'll need to remind yourself you have nothing to feel awkward about and nothing to be ashamed of when it comes to him. That's his deal
In time...
AJ
"Our lives begin to end the day we become silent about things that matter" MLK Put the glass down... "Yesterday I was clever so I wanted to change the world Today I am wise, so I am changing myself."