So, the thing here is this: whilst phone checking really isn’t helpful - as you acknowledge - if these images mean nothing then perhaps, as is the case for so many people, they sit there doing just that – really meaning nothing so no hardship to lose them – and this is what he should do. I wonder though that even if he did press the delete button, you would still be left wondering how come he didn’t recognize they would upset you and do something about it before it all came to this. Two things then. The first is that as a couple you need to get some better communication going about what feels comfortable for each of you. I don’t know if he is aware that you have been cheated on before. If he isn’t, then tell him. If he already knows, and does it again, then maybe it's time to question if this is the right relationship for you. But a word to the wise as well – so point number two: Many, many people have significant trust issues. They can feel paralysing and like nothing can actually be good, real and true. Even the kindest reassurance is never enough and the constant looking for proof that the relationship isn’t what it should be becomes exhausting. If this rings a bell then it might be an idea to get some individual counselling to help you work through whatever has happened in the past. Accessing counselling doesn’t mean that you’re weak or unable to cope or have anything ‘wrong’ with you. It does mean however, that you can sometimes work out how not to let the past constantly invade and undermine what you want from the present and the future. That might also include what you want from a relationship and how to address and potentially leave a relationship where your thoughts, needs and feelings on significant things are ignored. I’m not saying that’s what’s consistently happening in your relationship now - I don’t know enough about it - but offering this point as simply food for thought, just in case.