Lying or annoyed?

I found out my husband had a secret email account (that he says he has before we met) that he had thousands of naked pictures of pornstars, ex-girlfriends, conversations and texts he was hiding from me, etc. This past June I found out about it because he stupidly used my email to send himself screenshots and I saw them in the sent folder. I confronted him and I left the house for a couple of days because I was so hurt. When I came back he had deleted the entire inbox, sent and trash an of the email address and gave me the password. I asked him at the time if he had sent them to another email and he said no. So I left it at that. Now we’re in January, my gut is telling me somethings up so I ask him again politelyX “hey, I’m feeling a little uneasy about this right now, are you sure you didn’t send what was in that email account somewhere else that you’re hiding from me?” And he immediately got really mad and said “I fucking told you already I didn’t” he then gave me the cold shoulder the rest of the night and the next day. He says “so I’m just gonna have to live with you asking questions I’ve already answered for the rest of my life?” I tried to approach the question in a way that was coming from how I’m feeling at the moment and not attacking him but he doesn’t see it that way and just yells, shuts me down and says I’ll never leave him alone about it. Could he be lying and that’s why he’s defensive? Or just honestly annoyed that I’d asked the question again months later? Help.