Rationalizations are an important aspect.
I will now explain how to make a more accurate analysis in social situations utilizing this knowledge.
You need emotion, but you also need to understand the emotion. Problem is that your limbic system can't talk. Therefore, we resort to rationalizations. But most of the time, the rationalization is highly inaccurate. Why? Because our unconscious side has a lot of information about negative things about us and we try to avoid it because it doesn't help us feel good (this emotion exists solely so that mental health can be preserved and cognitive dissonance gets reduced).
Example:
You are angry that your husband is late. Possible explanation: You are angry because he's always acting selfish and doesn't respect you.
Other explanation that is probably more accurate but contains negative aspects that the consciousness hides (drive attention away from) to reduce cognitive dissonance: There is a deep fear to get rejected. Maybe there are experiences in the past where trusted people just left you. This deeply rooted fear triggers anger as a reaction because your unconscious side sees a threat (indirect increase of likelihood of death through social rejection).
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How to utilize this? Analyze your emotions and try to ask: "What useful information does it contain?" and "What are the root causes for this emotion, what is the incentive system behind it?". The hardest part is that you have to know about your deepest insecurities, deficits, negative experiences and fears ("I'm objectively not very attractive", "My mother never showed me her love in unconditional ways", ...) and regulate your emotions (instead of acting out that anger, you analyze it on a meta-level and extract information from it for a more accurate analysis). This requires extreme self-reflection and years of struggling. When one finally masters this, he's considered enlightened which basically means that he's able to not only analyze his own behavior and emotions, but can also use this knowledge to act accordingly.