TB, I look at Fredo's statements in a familial way. There are any number of siblings who hold resentments, grudges, and hurts against their siblings maybe because of the attention their siblings received from their parents. Of course, in the grand context of a Mafia family on film, those resentments become magnified.

Some of Fredo's language represents his frustration with himself: his failure to do this or to do that. Such frustration is common to many of us ("It might have been"). How do we assuage that frustration. Well, Fredo tried to do it by seeking solace in the arms (so to speak) of someone who gave him a degree of solace and comfort.