because they have their own personal self esteem issues
I love reading quotes that I can relate too that make me feel special.
Password on phone means he probably has something to hide. Yes you should trust him because he's your husband, but if he needs a password he probably doesn't trust you. I think you should just ask him why.
If I were in your shoes I'd let go for now but continue being a friend. Then try again one day if she's ever available.