I know what you meant. I was exaggerating a bit but its still not healthy. For you and your relationship. Sure, you shouldnt constantly be complaining or getting upset at your partner because you yourself are upset, but if you dont show that youre sad its gonna weigh you down.
Going behind his back doesnt show a lot of trust either. You could tell him how you feel about it (dont demand that he stop, just tell him you feel sad when he follows pretty women or smth) and you can talk about it. If its not that important for him, he may stop. If it is though, you may try to give him that freedom or find a compromise. But not talking about it will just leave you feeling sad whenever you think about it.
Take it with a grain of salt though, Im not a psychologist.
Big phones. Why wont they produce anything that fits in one hand anymore?