I went through my partners phone and found ddlb ai chats.

I (20 ftm) went through my finance’s (20 ftm) phone while he was sleeping, I shouldn’t have but I was making a cute post from his TikTok. When done I saw c.ai on his phone witch was weird bcs we both agreed on the politics of ai being destructive and harmful. Regardless I looked at what characters he was messaging and it was characters named after myself with explicit daddy dom little boy content involving diapers and such himself being the little. Now we both have talked about little space as a SFW coping mechanism, and set boundaries about it and allowed it to be something we do to help each other relax from time to time. I have had the strict boundaries of ABSOLUTELY NO diapers no changing and no daddy or mommy things it makes me extremely uncomfortable due to past trauma that he knows in detail. I feel disturbed finding these messages and feel disgusting about myself being put in that situation even if it was an ai bot. We have been engaged for three years and I thought that he understood my boundaries and comfort with this, I want to understand where he is coming from and why but I don’t think I can bring it up to him before I clear my head.

I guess I’m asking what would you do if you were in my place or even why he might have done this?