My FIL (56M) has an AI chat bot of my husband. (32M)

My Husband (32M) and I (30F) have been married for close to 6 years now. He is very family orientated and I don't have any family so we live near and often go over to his parents house for dinners with them and his siblings. We will watch movies, tv, and play board games with them so we are all very close.

We were at their place last night to finish watching the new season of Stranger Things. My FIL (56M) excuses himself to the bathroom and when he comes back I get up and go myself. Thats when I found his phone sat on the toilet roll holder.

Now this is where, admittedly, I did something very invasive and wrong. The phone was unlocked and on, so I snooped on it. I clicked into his history and saw a frequently used app that caught my attention. The icon was a black box with the letters C.AI and the AI is what caught my interest. I have ChatGPT but never heard of C.AI.

I selected the app, and it opened to a bunch of profiles of anime girls and a few guys too. I dont watch anime but I know he is super into it.

I then hit a button with a messenger icon and it brought me to his active chats. It was a bunch of anime girls again, except for the chat at the top. When I read it my heart dropped into my stomach. It was my husband's name, and the profile icon was an ai anime man who looked like him too.

So obviously I selected it. And what I read made me want to puke, gave me a headache, and has sent me in a turmoil. It was sexual, and my husband's ai acted like a teenager living with his dad with multiple sex scenes. I got to 3 before I had to put it down. I didn't read them in detail, I was skimming thru the messages. It was a weird incest role play.

I lsat next to the toilet for a hot minute because I thought I was going to puke. My husband eventually came to check on me and I told him I wasnt feeling well so we went home.

Do I tell him? Hes so close to his family and I dont want him to lose that like I have. But I literally dont think I can look at his dad ever again, and it scares me to think that his dad thinks of him like that. But I also dont know how to even start telling him something like that. His dad could easily uninstall the app and call me crazy, but I am physically ill from what I saw.