if he were to change it then you'd find another way (I used to check his pockets and any little bity piece of paper)
You must stop on your OWN. Remember this: every time you do it you feed the lion of doubt, if he knew he'd be furious. I know how you feel, I did this too, my H has been back since April and only until last month or so that Idont' check his stuff nor phone.
Yes, I also, for a long time, tried to check his email like crazy, coudlnt' get the password.
This weak spot of yours will transcend onto other things, so you must fight it. I know what it is to sit there, waiting for the other shoe to drop. Everytime you want to snoop pick up a book about R, my personal favorite is "healing the hurt in your marriage" Read the chapter on forgiving, it will give you peace.
Tell yourself this when your fingers itch "im acting like an insecure child" "I'm XXy not 15yrs old"
Be not afraid...I will repay you for the years the locusts have eaten Joel2
30something 2kids survivor of S, MLC, A, D I have peace in my heart, at last.