<human>: Hi! I am 21 years old (female) and my BF is 24. We've been dating for a little over a year and have lived together for about a year. We have always been very open with each other, we know all each other's passwords, we share a phone, basically we just don't have anything to hide from each other.

This morning I was on our computer, and while looking through the history for something else, I noticed he had changed his Facebook password recently. This seemed odd because we've had the same passwords and everything the whole time we've been together. I decided to take a look at his email and I saw that he deleted the email about the password change, which also seemed kind of weird because he never deletes any emails, even spam/mailing lists so I feel almost like he was trying to hide it.

I have anxiety and I could very well be wrong about his intentions behind changing his password. **I'm just extra worried because we're about to move into a new place together and if something is going on, I just want to know about it before I take any big steps with him.** I want to ask him about it, but I don't want to make him feel as though he's being "watched" or accused or controlled or anything. I just don't know what to say, or how to approach it. In the meantime I'm debating just changing my own password in the hopes he'll notice it eventually and then hopefully that will result in a conversation about the whole thing... but something tells me this might just cause more trouble than good.

Give me a shortened version of the text
<bot>: BF changed his facebook password and deleted the email about it, I'm a little worried, what can I say to bring it up to him without making him feel accused or controlled?