Am I the Asshole for Waking My Partner Up

My parter, Rad (33m), and I (23f) live together in an apartment with our 2 yo son and my 3.5 yo daughter. Our relationship had been very clear that we are monogamous. However, i had found out shortly after our son was born that Rad had been emotionally cheating on me. I was devistated, and when i confronted Rad, he said it was bevause he felt like i was emotionally pulling away from him. That wasnt totally true, as i had noticed dating site profiles. We ended up resolving things and we moved on. Fast forward to this morning at around 4 or 5 am. I was on his phone getting pictures he had of the kids and i for a fb post, and came across a private picture he took of himself. This is odd bc he doesnt do that. Ever. I woke him up to confront him about it, and he said that he was going to send it to me but decided not to. I told him i didnt believe it and he got extremely angry and punched a ginormous hole in our apartment wall. He says our relationship is over and its my fault for asking questions. So IDK, am I the asshole?

EDIT*** The private photo i was talking about was a mirror selfie with his penis out