Asking for a friend

Her n her man been together for almost 6 years they have a baby but she gets mad at her man cuz she sees in her inbox that his signing up for live sex cam n other stuff

She keeps asking what’s the point of having me if all you ever do is play with yourself more than you do with me he tell her she’s overreacting those other girls are across the world babe I can’t even physically touch them or meet up than he started packed up all his clothes n left

Why do men need porn when they have someone right beside them my friend wondering