I need help understanding this be honest but not hateful?

I cheated once on my boyfriend, he doesn't trust me 100% understand that so he questions everything I do and I'm open now telling him everything, but I have a feeling he's hidden something from me as well but I don't have no proof plus he hasn't wronged me but im judging by his past, it's wrong of me to do that bc I was the one cheating. But when I'm open with him with everything even tho I messed up like i show him my phone and everything now, but when I feel as tho he's hidden something he doesn't give me a direct answer or give me some type of proof, he throws the I shouldn't show u anything bc I didn't do anything but I see hidden content pop up on his phone but when I'm laying next to him and I get a message of anything he reads and looks over my shoulder, and it's so wrong of me to accuse him of anything bc I did it, is it wrong of me to think this or is it just me being paranoid and acting crazy (he always says that)

I need help understanding this be honest but not hateful?
Post Opinion