I don’t know what to do ?

I logged on to my boyfriend computer to sent out a work email since I didn’t have my computer, I never look through his computer or phone, after I sent out the email I went ahead and deleted my history to find a google search of gay porn, I didn’t know what to do.

I talked to him about it and he said it wasn’t him but when I looked into his work phone it had the same google search, when they both have a different Apple ID email.

He kept denying it and now I don’t know what to think of this