What you’re doing is really common after a marriage ends, especially one that hurt. Your brain is trying to protect you. It’s scanning for danger and jumping the second it sees anything that even reminds it of your ex. That doesn’t mean this new guy is doing anything wrong. It means you’re still carrying the old fear.
The fact that you notice it is huge. That’s not failure, that’s awareness. You’re not trying to ruin this. You’re trying to not get blindsided again.
Here’s the part that matters: when you feel that spike of upset, pause before reacting. Ask yourself, is this him, or is this my past talking. You don’t have to be perfect. You just have to slow it down.
And please give yourself some grace. You didn’t stop loving overnight. You won’t stop protecting yourself overnight either. It gets quieter with time, I promise.