This was really well done. Short and sweet. You captured the previous mood between the two beautifully. The writing was strong, characterization was strong, and it had just the right amount if sweetness between these two.
Only thing I would suggest is in this paragraph : "That's when she realized, she was only merely a tool to him; he may have rightfully admired her and even at some places adore her, but that was it. She along with the rest of the battalion were a means of attaining his goal, his ultimate goal; his dream." Make it ckear the him she's referring to is Griffith otherwise it could read as her talking about Guts.
A small thing. Still, I really enjoyed this.