Just because I was thinking about it and thought it would be interesting to see what others have to say:

Do you have any trigger words - any mundane or casual words that you see in a conversation your SO is having or a group chat that triggers you or just bothers you?

I don't mean things like someone saying they love your SO, or anything that crosses a set boundary - just a word or phrase that irks you, maybe a pet name a playmate has given your SO, a term people use (BBC, BWC are common triggers I gather), anything like that.

The only one that I can think of that does it for me is "baby" as in "Have a great day baby". Not sure why, I never use it for my wife - but I trigger it every time I see someone else use it.