Can you trust a cheater again? That's an excellent question.
Right now, I don't trust him, I am still on "alert", but I don't let that alert being an obsession or bother me in my daily life. I would say he is "on parole". I live with it, that's why really being able to detach, helps not only during the crazy period but also after. I somehow became "waterproof" to how he can have an influence on me emotionally. I do love him but I don't let that "control me".
Do I will be able to trust him fully later on? Probably not! but that's my position as it is today, may be it will be different in one year.
I think it depends of the behavior/actions of the WH or WW and how they are trying to make up for what they did, somehow it goes back to remorse.
Can you trust someone else fully after that ordeal, that's another great question, most probably you can but not blindly as you used to with the previous one. We changed...
Me 52+ WH 57+ Married 20 + Piecing since 2016 (ready to give up...)