I took the line in the middle to mean she changed but he hasn't. They met young, got close, had fun, and either the relationship progressed or they got older and she started to look toward the future "good schools, friends with pools" while he was perceiving the relationship as fun and free. Now he's torn concerning whether or not she changed too suddenly or he didn't grow up fast enough. They are contras, but it's unclear who is in the wrong or if they just went their separate ways. He's also having a hard time holding it against her.
I took the line in the middle to mean she changed but he hasn't. They met young, got close, had fun, and either the relationship progressed or they got older and she started to look toward the future "good schools, friends with pools" while he was perceiving the relationship as fun and free. Now he's torn concerning whether or not she changed too suddenly or he didn't grow up fast enough. They are contras, but it's unclear who is in the wrong or if they just went their separate ways. He's also having a hard time holding it against her.