There are two conflicting things here, OP, and they're very confusing to try and reconcile. One pressure is a sense that if he does and says all the right things, and doesn't ever cheat again, trust could be restored and the marriage remain intact. But there is another thing that you need to step back and look at which is different from this. It is whether or not you are able to love him and be content again ever after this, no matter what he does.
Sometimes people make a bit of a mistake and confuse the two things. They think they OUGHT to want to make it work, and if they cannot find fault with the partner's restorative attempts post the affair they view that as evidence that they should continue and have chosen the right path and have no excuse to bring it up or leave.
But this confuses reconciliation and being married to a different person to the one you thought you were married to.
For some people, just the act that has been done is too much to ever really recover from and love satisfyingly ever again. it doesn't matter what attempts are made. Think of it this way, there are some people who, having dropped a slab of food on the floor, and seeing its got stuff all over it, would it anyway. There are some people who would run it under the tap then try it. And there are some people who it wouldn't even occur to to eat the bit of fish or whatever that just fallen onto the floor. It's ruined now. It's okay to be that type of person. Often that belongs to people with a very strong internal moral sense, who haven't been unfaithful themselves, who come from secure, loving backgrounds and know what they deserve. If, for you, just WHO HE IS now is unpalettable to you, then it really doesn't matter what hoops he jumps through or how open he is. He's ruined.
This takes time to process and work out. Initially it's normal to feel like you can never imagine them in your bed or in your life again, but if, over time, you still feel like something quintessential in your understanding of him has turned sour then it is okay for you to end it. It is still his failure not yours. He betrayed who you thought he was. Now you have to assess the man he has become, or actually always was. A different man, requiring a different conclusion. Know yourself here and what kind of person you are. Don't waste your time if you know.