Internally cheating vs externally innocent?

I was doing fine today until I asked ChatGPT if i cheated and they said it could count as emotional cheating if you are engaging in intense daydreams and looking someone up on social media to feed a fantasy about them. My partner and I already spoke about me fantasizing about this person and he said it was totally fine since it happened in my head and he has had crushes and fantasies on coworkers too. However I feel absolutely devastated and wrecked with guilt and anxiety and panic right now. I genuinely feel like a horrible horrible horrible cheater. I don’t know what to do. I have therapy scheduled for later this week but I really really need some advice right now!!! I feel like it could count as cheating since it did happen during a few weeks where i felt a bit distant from my partner and I feel like the daydreaming was excessive. I am so so scared. Do I confess? Do I tell him I cheated? He already told me once that cheating is a physical interaction (and I literally have not interacted with this person outside of surface level responses in a group server that my partner is also a part of). Do I have a moral obligation to tell him I cheated? I need to know.

Despite the fact that I have never once acted flirtatiously with someone else over the course of my 3-year relationship, never talked to anyone inappropriately, never touched or interacted with anyone inappropriately, I have been battling constant ROCD obsessions centered around cheating ever since my partner and I got together. I am constantly worried about whether certain things are cheating: daydreaming about another person (already told my partner about this and he said it was okay and that he does it too), talking in a group chat with someone, sitting next to someone, speaking to them in person. I question my intentions. I worry that I cheated by wearing my hair a certain way in an attempt to look more attractive or by jokingly poking someone with a fake sword (despite doing it to other people too), looking through someone’s social media, etc. I have confessed so many ridiculous things to my partner and he’s always told me that none of them are cheating. I feel so guilty for being attracted to someone else, despite the fact that my partner said it was fine and normal. I have made a very very conscious effort to limit my interactions with this person. I never ever ever ever message them privately, I make an obsessive effort to NOT reply to their messages in a group server (constantly keeping track of the ratio of my replies to their messages compared to other people’s), to ignore them when I see them in person and hardly ever speak to them or initiate conversation with them. Yet I still feel like a disgusting dirty cheater who is hiding a big secret.

I was at a house party a month ago and everyone was taking photos of silly moments. I took two photos that had an attractive person in them. I deleted the photos a few days later because I felt guilty and anxious that I had taken them. I keep ruminating and thinking about my intentions. I do believe I took them because they had an attractive person in them. I worry that this makes it count as cheating. I am very very open with my partner and I tend to constantly confess things like this to him. I have confessed so many things to him, and he always holds the same stance: he believes that fantasizing and crushing is okay. He said he has had his own crushes and he said “fantasizing is nice as long as it stays a fantasy.” I agreed. I told him about my crush and how anxious I was about it and how I was afraid that it was emotional cheating. He told me that it really doesn’t matter and that it’s only wrong if it’s physical cheating. I should note that I have taken VERY VERY good care to never even attempt to become friends with this person. I’ve seen them a handful of times at group gatherings but I never ever message them on my own, I ignore all their messages in a group chat because I don’t want to give them special attention, I never even speak to them in person unless they speak to me first. We are barely even friends. He said he doesn’t need to know what goes on in my head and as long as an action seems innocent to an outsider, it’s not cheating and he doesn’t need to know about it. One time I confessed an action where I also felt like my intentions were wrong, and he told me “Who cares about intentions? It’s outcome that matters.” My therapist also told me not to worry about these actions. He said that if I keep ruminating on whether an action is right or wrong, I should just try to sit with the discomfort and not confess. He told me that if an action were really wrong, I would KNOW it intuitively and “my body would push me to confess.” I’m just so worried sick about this. Do I confess or not?