need advice! yes its porn topic

Ar

my boyfriend and I have been together 10 months, he used to watch porn 24/7 which no I am not okay with it. well he stopped for a while and just recently I found out he was getting on one of my old phones for months to watch it so I couldn't find out. I'm devastated idk what to do. he's promised me he won't but keeps doing it over and over again. what would you ladies do?