This statement is a sincere declaration of unconditional love and acceptance. "I Want You All Of You" signifies that the speaker desires a complete and unreserved connection with the person addressed.
The inclusion of "Your Flaws, Your Mistakes, Your Imperfections" emphasizes that the speaker loves the person for who they are, including their human flaws and mistakes.
In essence, this quote beautifully conveys the idea of a deep and authentic love, where the speaker cherishes the person addressed in their entirety, flaws and all, and desires only them. It's a powerful testament to the purity of their affection.