Had Margaery known what was going through his head she may well have attempted some sort of reassurance and left him alone sooner than she had planned. However as it was when she retook her seat next to him she knew none of these thoughts.
Margaery laughed, the sound filling the otherwise quiet room, "I am afraid that is a rather fruitless hope" she informed him, "Loras has always been...spirited and independent. As I am sure you know" she added, a cheeky twinkle in her eye.