*sigh*
Don’t get mad. Just do what he does. When you go out of town, hold back and selectively respond. It’s not about having a “different relationship with your phone.” It’s about having different relationship expectations. It could be about different values. But see how he feels, how you feel. End of the day you need to be happy. Probably if the relationship makes you feel this insecure, your needs are not being met. You have to examine if your needs are reasonable. If they are and he can’t adjust, well, there you are. You have your answer.