Partner lied to me about using a dating app. While he was lying to me he did turn it around on me and project and make me doubt myself and my reality.

He apologised a few weeks later and took accountability

Yet I feel betrayed, resentment, anger, hurt and pain. If I stay with this man how do I know he won't cheat on me?

I've never felt such resentment and betrayal before.

He said he will do things for me but how do I know he will go through with it? I feel like I can't trust his word