Gaining back trust; cheated on. Can anyone relate?

He was texting other girls, sliding up on there snapchat story putting heart eyes and etc..

He’s done this since the beginning and I told him I wanted a break

He said that everyone makes mistakes that he’ll change and I can have allll his passwords that he doesn’t wanna lose me cause we been through a lot.

I said he won’t change in one day and I have zero trust for him and that it’ll take time but rn I need a break.

Okay so ik we’ll get back together... I just don’t know when but I want to be fully able to trust him and not worry about him doing anything,

Advice would be nice ?!