Stressed and anxious

My boyfriend and I have been together since January. He’s lately just been very angry and moody.

He’s also very protective of his phone.

I moved in with him about two months ago.

Since then, he’s just not the same. It’s a constant argument over me not doing enough around the house.

He has two children that are here most of the time, that he refuses to hold accountable for their actions.

Tonight after he took the kids back to their mom’s after “practice,” he showed up 45 min later than he said.

I tried to ask him a couple of questions, and he was angry and freaking out about me never shutting up.

I know I shouldn’t have, but I looked on his FB, bc he’s not very clever with his passwords, and although he wasn’t directly “doing” anything in any private conversation, etc, he is a member of some pretty vulgar FB groups, where apparently women just post basically “selfie porn”—not a lot of faces.

I don’t see any direct messages that were sketchy, and even in his searches, since we have been serious.

Am I over-reacting? He freaked out on me a couple of months ago because it’s “disrespectful to your partner” to use a toy when he’s away on work.

I feel like there’s a huge double standard here, but I don’t know how to address it with him, because I know he’s just going to focus on me looking at his FB.

While I get it’s a violation of his space, I’m not doing anything like that. At all. Although, he accuses me of having a sex addiction, because I am a woman that unapologetically enjoys sex with my boyfriend—him.

He’s a good man in so many other ways, and I don’t want to end the relationship, but I do want to broach the subject with him.

I just honestly don’t know how. Looking for advice. TIA