AIO? My dad has been looking at porn

My parents have had a horrible marriage as long as I can remember. They don’t even hug, and my dad in particular is very much the type who is always looking for validation that he is cared about. They are in their late 70s/early 80s.

I was at their house this weekend doing Christmas baking with my mom and my kids, and since my parents know nothing about computers they asked me to set up their printer. I was at the computer and clicked on the wifi icon to see what their network is called, and this thing popped up that the most recent video title that was watched was something like “dirty Rosie gets pounded.” I was almost in disbelief but I knew right away 1. That it was porn and 2. That it was from my dad (my mom never gets on their computer). I opened a browser window and in the search bar typed “po” and recent search history popped up for multiple pornos. I didn’t look any further, I just cleared his browser history and finished setting up the printer.

I guess I’m not shocked that he watches it considering he is human and doesn’t get affection from his spouse, but I just can’t stop thinking about it…I am kind of upset? Not mad at him. I’m just reeling I guess. He is very churchy and I just never even fathomed this. But there it was - right in front of me.

I could NEVER bring it up to him bc he would be mortified and honestly it would probably give him a heart attack. I feel this weird sense of protectiveness over my dad, so I feel like I need to take this secret to my grave for him. I haven’t told my husband bc I don’t want him to look at my dad differently, and I certainly could never tell my mom - they don’t need anything to add more strain to their “marriage.”

I’m spiraling like, could he have a porn addiction? He is home alone a lot bc my mom comes over to my house to babysit my kids most days and he has no other hobbies and doesn’t get out of the house much. Idk if I’m just reading way too much into this, maybe I’m just still getting through the shock of it all. AIO?

Edit: I realize how babies are made. I’m not freaked out that he has urges or whatever, nor am I judging him for it. The point of the post was just that he is keeping this big secret and I just never expected to find evidence of porn on my dad’s laptop that he uses for emails and checking baseball scores. It was jarring to have it be so blatantly in front of me and then feel burdened with this secret that’s not mine.