Am I the kameena if i told her everything?

I was in a situationship with a guy last year who sent me mixed signals from the start. We weren’t really together, but he kept me close, even though I later found out he was on Bumble and dating someone else. I distanced myself after that, but he reached out months later and invited me to a movie, even held my hand, which made me think he was single again. But then he mentioned he was making a handmade gift for that same girl and said they were “serious.” I was speechless.

A few weeks later, around Christmas, we ran into each other, and he introduced me to her. It was awkward, and I kept it polite. Right after that, he started insisting on meeting up again. I kept saying no, but he pestered me for days until I finally gave in. When we met up, he asked if he could kiss me. I said no twice, but he still went for it. Then he said he had feelings for me and should tell his girlfriend, but quickly followed it up with, “This was a mistake.”

After that, I returned all his stuff through his sister and let him know I was done. He later showed up at my place to return a sweatshirt he gifted me but I didn’t want to keep it anymore and claimed he’d told his girlfriend everything, saying she cried and made him promise not to repeat it.

But here’s where it’s haunting me: a couple of months later,wheb i was out of state for work i had issues w my laptop and the place i was in was really secluded so I called him for some tech advice,and he immediately tried to make plans to come to that state and spend a week with me, taking care of the expenses for both of us. I declined, but it made me think he probably never told her the full truth about what happened between us. Now I feel guilty, like she deserves to know the real story, especially because I have proof. But I worry it’ll seem petty since it’s been a while. This didn't bother me until the last few days.

So, am i the kameena if I reached out to her to tell her everything? Or should I just let it go?