I found something in his phone and I’m deeply worried

I was snooping through his phone because of previous suspicions I have had and I found something searches from before me.

It was like 18 year olds on their birthday and 18 year old nudes.. things like that. Well then I saw searches for anime’s where the characters were like 14 and he was trying to looks up nudes of them.

Then I found links and one said 12 year old nudist and 14 year old nude teen girls.

I don’t even know what to do at this point. I’m in an age gap relationship, he’s 40 I’m in my 20s. We been together since I was 18 so that’s what prompted me to look into his history because he kept telling me he never had a thing for teens, basically I was an exception. Clearly a lie.

Is it possible those link names were wrong? I don’t want to even click on anything to find out. I don’t know what to do but he’s saying he was “porn sick” back then and isn’t like that anymore, etc.