I think the point Steve made was ample to show what you may mean to your husband, if he can go through all that effort to bring you to the UK you should remain trustworthy and in his love.
The surefire way to corrupt a relationship is to introduce elements like paranoia, listening to people who have no real bearing on your relationship and worrying about things like this.
As said by Terpe we are all different and the rules are created as we go along, unless you really think there is another woman involved you should just live your life and enjoy the time you have worked hard to make.
I would say the tighter a woman squeezes a man (and vice versa) the more likely you are to slip out of eachother grasp. I've seen this a few times, focus on what makes you happy and think about the good times you have had together and look to the future for more of the same.
It doesnt really matter what one keep on his phone - Rina never see's my work phone only because the stuff on it is boring, but of a sensative nature she never asks to see the contents anyway.
Move on and stop being upset with what isn't is my advice otherwise you will be on the slippery slope to divorce - I hate to utter those words but its the reality every little "where are you, what are you doing" will erode the relationship I'm afraid..
Tone