We've been together about three weeks. He says it's a good idea to know each others phone passcodes. He went through every past text message history in front of me and one that really bothered him was of a guy I use to date before I even started talking to my boyfriend. He saw one inappropriate pic that the guy I use to date sent me. He didn't tell me he was upset on the spot or else I would of showed him that that pic was sent to me months ago and I did get upset with the pic guy for sending it and stopped talking to that guy for months because I hate receiving d pics. My boyfriend says I don't know what commitment is or don't know what it looks like because I should've deleted all pics of other guys from my phone. I have a couple normal pics from 3 guys I use to date on my phone, but they are very spread apart and about a handful of pics of each. I never go through my phone and delete past text messages from co-workers, study partners, dates, friends I don't talk to that much anymore, ext. I just never get around to it. I always switch phones before my message storage gets full. I'm kind of upset because we just started a relationship and he feels the need to go through my phone already. He says he's like this because his ex cheated on him.