How much time before considering it a pattern Puppy Dog? I am struggling with this at the moment too.
Happy Bday to your wife by the way.
I only have a moment, but I would suggest looking at 4-6 week periods, and whether they are better or worse than the prior 4-6 week period. And by "better" I DON'T mean "he's not angry with me!" nor "He said he's going to file for divorce!" -- just ACTIONS.
Wayward spouses generally LIE. Only when their words align with the actions, over time, will you know they are telling the truth.