Would you allow your wife/husband to go through your phone just once?

I've been thinking about this and I think that both sides of the argument have some pretty valid reasons. This is a question purely for married couples. I think that if your partner is feeling insecure/doubts/trust issues, then I feel that it's your job and responsibility to stop them from feeling like that. I think going into marriage is also being open to being open, if that makes sense.