There is an old saying that says "The best revenge is a good life." To me, that is much of what this song says. The singer says that his lost love wanted perfection, did not find it in him, and let him go. In response, he tells her that he will be just fine without her, and that that, for him, represents perfection. She wanted perfection, but he is the one who found it, not her.

In Jamie Miller's song Here's Your Perfect, the phrase "Here's your perfect" is more figurative. It doesn't mean "you are perfect when it comes to this." Instead, it reflects the singer's emotions and response to a breakup or unrequited love. The phrase can be interpreted as: "Here’s the perfect version of me you wanted." It expresses that the singer tried to be "perfect" for the other person but still wasn't enough. It's a mix of irony and heartbreak, where "perfect" highlights the emotional effort or the idealized image they tried to fulfill but couldn't.

Wow, good song. I think he is singing about how she isn't satisfied with him. So he let her go, so that she could go get "her perfect" life. Like when I give you an apple, I might say "here's your apple". So he is giving her a chance to go find "her perfect", so he says: here's your perfect/here's your apple. Sentence construction.