Is asking my boyfriend to see his messenger wrong?

He always goes through my messenger and idk his password and I’m getting a weird vibe I just wanna flat out say to him “can I see your messages” and see what he says..for some reason he feels the need to log himself out of Facebook on my laptop and deleted all his history..nervous about confronting him because he gets so mad but I have a kid and I’m stuck with him in my life..