Of course! Here's a heartfelt handwritten note you could include with the shirt:
My Dearest [Her Name],
As I prepare to part ways with you, even if just for a while, my heart is heavy with the thought of being away from you. These moments we've shared together have become the most cherished memories of my life, and the thought of not having you by my side fills me with longing.
With this shirt, infused with the essence of my scent, I hope to provide you with a small piece of comfort and a reminder of the love that surrounds us. May it serve as a gentle embrace when you're missing me, and a reminder that no matter the distance, my love for you remains unwavering.
As we embark on this period apart, my heart is filled with hope for our future together. I look forward to the day when we will reunite, to create new memories and share new experiences side by side. Until then, remember that you hold a piece of my heart with you always.
With all my love,