For me, triggers are things that create an uncontrollable thought chain, usually a strange feeling in my stomach, a numbness/blocking out to what is being said/going on around me etc. So I can only focus on my own thoughts of the past (or my view of the present). For me, I am triggered in particular by a couple of songs (which are always on the radio, which I used to enjoy, singing along to whilst I did the housework, whilst my partner was in another room getting himself off to images of the women singing them). Films in general that I used to like, we would be watching the films and my partner would be looking up the images of the women in the same room as me. After taking ED drugs. Then suddenly be ready for bed (sex) halfway through the film. When he was done with his own favourite films, he did all of mine. Then the kids films (marvel, scooby doo etc!) so pretty much every actress in the world is untouched from his antics. He literally looked up images of over 300 women in 3 weeks. And that doesn't include the 100+ hours of porn, the youtube videos, the general p-sub browsing on insta, newspapers, celebs etc...
So yeah, lots of things like that are prone to trigger me. Sometimes I handle it better than others. Also, being in certain places. We had a holiday home in a nearby seaside resort. Even after we sold it, we went there several times a year. I cant face it anymore, as none of my happy memories there in the past were real. Because it was all based on a show/lies.
His phone in the bedroom is a trigger for me.
A particular family holiday from 10 years ago, with all of his family, who talk about it regularly as the best holiday ever. Was also the first time the ED truly hit. It was also the time when I clearly remember the feeling of something being up. This feeling led me to do all sorts of things to myself, to try to spice things up, to try and make things better, to compromise myself in and out of the bedroom. It took me another 10 years, 2 kids and a house, to find the truth. (stupid really as the porn issue had arisen 5 times previous to this but id believe his lies about it, not known of addiction etc. but for some reason I spent the next 10 years in complete denial that it could be that causing all of our many issues! I truly believed he wouldnt do it again, even tho we'd all ready had ddays! I blamed myself instead).