AITA for erasing my existence and not telling my bf?

So I, 500m, used to be part of a crime organization where I worked with 10 other coworkers. Me and one of said coworkers, C (21m), kind of had a thing going on. It was mostly casual but we did use the label boyfriends if it’s relevant.

For some backstory, while I was on a work trip, I ended up in possession of something that belonged to my mom. Me and my mom have never gotten along. She thought I was weak and didn’t want me after I was made, and she decided to abandon me to fend for myself. After I came into possession of this item, I decided that instead of going back to work and bringing to my boss as intended, I wanted to use it to become a divine entity and show my mother that I’m not weak, and that I’m better than her and deserve this.

One of my other coworkers, D, decided to help me with this as we have known each other for a very long time. D had come up with an entire plan to turn me into a god, and it was decided this would happen as fast as possible. I had never told C about this, as I know he wouldn’t have approved. As a mortal, he wouldn’t have understood that this was important to me, or that I couldn’t be convinced out of it.

Anyways, me and D’s plan failed. He left without me, taking the item from my mother with him and leaving me with the god of the nation we were in, N. N decided to let me live for some reason, and I started to begrudgingly help her when I recovered from the entire event. One day, one of N’s friends, we’ll call them T, came by to help her with something. You see, N has access to this massive tree that encompasses all the memories of the world, and T needed to look through them or something I don’t really remember. Anyways, N sent me and T to go look inside the tree. As we were in there, I decided that since my life wasn’t going anywhere anymore, that maybe it’d be better if I told the tree to erase my existence. At the time, I thought the world would change, but as I know now the tree just erased the memory of me.

After a bit, T managed to restore N and my memories of myself, but nobody else knows that I ever existed.

Jump to now, where I live with N and work as her assistant. Yesterday, as I was out getting groceries, I saw C. I thought everything would be okay, as C should have no reason to remember me. But for some reason, he came over to me and started flirting. C asked if I could show him around, to which I said no, but he insisted anyways. As we were chatting, he asked if we had ever met before, and I didn’t know what to say. I told C that he doesn’t know me, but he didn’t seem to believe that.

Eventually, C left me alone and I went back home to see N. While I was talking to her, N told me that I should’ve told C about the past because he deserves to know.

Here’s where I may be the asshole, I told N that C doesn’t remember me, and that it’s better that way. C would probably think I’m crazy if I told him anyways, and I just don’t want to tell him. I have a better life for myself now, and I don’t know if C fits into it. N told me I was being unreasonable, and that C has a right to know about what we once were. I got upset and told N to mind her business, then left for my room.

I just don’t understand why N wants me to reconnect so badly, since C clearly is fine without me. I think she’s being dramatic in claiming he has a right to know who I am.