Why has my password changed?

Should I ask him why he changed his password?

• Alright, so me and my boyfriend a very close. We know each others passwords to most things. I don't snoop through anything of his and he trusts that i don't. It's his own privacy and i respect that. I've logged into his facebook account 3 times to view something under my profile if that makes sense. The first time i asked before hand and he said it was okay. The second time i logged in but my computer flipped out so i was clicking all over the place and his inbox message thing popped up. He had a notification, and had it been a long paragraph i would of just clicked out of it and finish my thing. At a quick glance is was a message that said "hi" from some girl. Nothing to be alarmed of. Finished what i wanted to view and logged off and i told my boyfriend right away about it. He said it was okay, and he doesn't usually get upset over anything. Well i wanted to see if this thing changed on my account one more time to be sure and wanted to use his account to view (it's easy for me to just log in and log out real quick). Well, turns out that he changed his password on the day i told him how that message inbox popped up. My first thought was that he's mad at me. If he had felt awkward with me going into his account, then i would have appreciated it more that he talked to me about it. But maybe he changed it for a different reason. He knows my passwords to many things of mine and i allow him to go through them if he feels the need to. Yes i understand that its HIS account so he should do what he wants but like I said, if he felt that I was invading his privacy then I think he should of just talked to me about it (this is only assuming he changed the password for this specific reason). Should i ask him about it? i wasn't alarmed at the girl that messaged him. I'm not insecure that he's going to break up or leave me or anything...i just told him that his message inbox popped up and some girl messaged him saying "hi" and that i didn't mean to open it. I'm more worried as to if he's upset that i went into his account although I asked his permission before at one time and i told him right away the 2nd time.

• Answer:

  i think you should. you said that you used to have full disclosure in the beginning. why should that change?