i need advice pls

my boyfriend used to like a bunch of girls on tiktok and save porn on his phone. this began to be an issue because of my past relationships. when i asked him if he had done these things he said no. i found the things on tiktok and was like bro what—-. well its been months since then and he has changed. he doesnt watch porn anymore or even have tiktok, he changed for me. not because i asked him to but because he knew how it made me feel to find these things. it hurt so bad. its been months and it is starting to bother me that these things have happened. how do i get over it?