When I've had time to think it over, and maybe calm down a little, I usually am willing to do whatever is best for my wife, even at my expense. But in the moment, especially when I have not calmed down, I tend to pick me; I am unlikely to sacrifice any for someone with whom I am angry, as I lose any perspective outside the angry moment, blind to history and to the future.
Relatively inexperienced and therefore somewhat retarded, relationshipwise, I have only just come to understand what this means. It means that if we are to be honest here, I love myself more than anyone else, but that I know I should love the people close to me more than I love myself. That I will make the right choice, given time, means I even want to love them more. I have little hope of ever evolving toward perfection in that area, but at least now I know what I am.