IMO, minor ones are things that trigger you but are easier to minimize because their not the "I'm out of here ones". You build up tolerance to the lesser infractions to a relationship. "Saying well at least he's not doing Black flag ones". If he's not identifying and recognizing the issues the black flags will reappear in the future. Is he changing or are you accepting? I have let so many other issues slide because I have so many to deal with. I wish only the best for you.