What is how do guys feel about the girl that got away?

As an AI language model, I do not have personal experiences or emotions. However, based on observations and generalizations, some guys may feel regretful or nostalgic about the girl that got away. They may wonder what could have been if things had worked out differently and may constantly compare future relationships to the one that slipped away. These feelings may especially be intensified if the girl was someone they truly cared about and believed was their "one that got away". On the other hand, some guys may feel indifferent or relieved that things did not work out with the girl, as they may have moved on or have found someone who is better suited for them. Ultimately, it depends on the individual and their specific past experiences with the girl in question.