The song "I'm In Love With A Capital U" by Joe Diffie tells the story of a rebellious student who didn't do well in school and was always getting into trouble. However, when he meets a special girl, she teaches him things that he never learned in school. With her love, she helps him to see the beauty in English, a subject he once struggled with. The girl also makes him feel good in ways he never thought possible and helps him to discover his own strengths. The lyrics also poke fun at the typical subjects taught in school such as math, science, and history, and how they never interested the protagonist. However, with the love of the girl, he finally finds a subject that he is passionate about – her. He is enamored with her, to the point where he is in love with a capital "U," referencing the letter that represents her name. Overall, the song is about how true love can inspire us to learn and grow in ways we never thought possible. It also emphasizes the idea that sometimes the most important lessons in life are not found in books or classrooms, but through the people we meet and the experiences that we share with them.