Puppy, why would I want him to agree that I would date? I dont remember agreeing for him to leave or agreeing to him having an A...
I should re-phrase this:
1) If the couple is NOT mutually working at reconciliation, then I think you should at least let them know of your INTENTION to date. Whether they agree with it or not.
2) If the couple IS mutually working at reconciling the marriage, then each of you dating others -- while also dating each other -- should only be done if you both agree on it.
Why #1, when you didn't get the return courtesy from his wayward ass? Because . . . it's The Right Thing to Do.