Just so you know, it is 4.5 years since he cheated on me.
In that time it has been painful, very painful.
Losing that trust.
I do trust him now though.
However, the thread that keeps us together is now made of cheap cotton, not nylon rope, and he has to be so good to me, so damn good, else I can, and will walk, run, skip, whatever away from him.
And he is being good, loving, promising me the world forever (I will join him in complete retirement soon, at the age of 43, no more work, just selfish fun till death do we part - even alone I can retire, so it's not reliant upon him) but he has had to change, he had to admit that what he did was stupid, that he only has eyes for me, else that's it, I don't need to be with a guy who is like a child, ogling others, all that bullshit about men still wanting to look at other women, so let them, yeah, let them, but let them do it without me in their life.
So if your guy, OP, is willing to change, just like my guy changed after losing my trust in him, then there is a chance.
But such change has to be true change, else you will never feel comfortable and happy with this man. And the pain is not worth it.
Sorry if I'm going on a bit here. Losing trust, which is what this is about, is a deal breaker, unless a great effort is made to fix it.
How great an effort is your guy prepared to make?