This quote reflects on the disappointment of investing time in people who ultimately prove unworthy of it. In the first paragraph, it means that the speaker finds it disheartening how much time is spent on specific individuals.
The second paragraph suggests that despite the significant amount of time invested, these people demonstrate their lack of value or worthiness in the end.
The final paragraph underscores the idea of the contrast between the time and effort given versus the lack of genuine appreciation or reciprocation. This quote conveys a sense of frustration and regret for having wasted time on individuals who did not appreciate or deserve it. It serves as a reminder to be more discerning and mindful about where one invests their time and energy.