My boyfriend is mad at me🙄🙄

Hi ladies ! So my boyfriend was going through my phone and went in my messages and I didn’t think much of it. He came across some messages one of my friends sent me. My friend is gay (male) and while we were on FaceTime talking he sent me pictures of some guys he likes and has talked too. He also sent me some of the butt pics he sends out to people. MIND YOU we were having regular conversation on FT and I never asked for anything he sent me and once I got those types of messages I shut it down quickly. I forgot the messages were there and when my bf questioned me about it I explained everything. But he started bringing up the past and was “pulling cards”. I completely understand his anger because it was definitely wrong to have gotten them but I’d think he be angry with the sender not the receiver because I can’t control what people decide to send me.

A little background:

The only things I’ve ever gone wrong with was missing signs that guys were trying to talk to me and carrying on friendships with them and texting an ex (in past relationships it was never a problem so I honestly didn’t know he didn’t like that). But my boyfriend has contacted MULTIPLE exes, started a tight friendship with a girl he knew liked him (they dated for a few weeks and would even kiss once they broke up) and he even brought a girl home WENT INTO HER HOUSE and ended up kissing her ( next day she text him telling him he had left hickeys ). He’s so mad at me tonight and is bringing up the past but I’ve never touched or had any intimate contact with another guy. So am I crazy for thinking he needs to stop treating it like my mistakes are equivalent to his?