Even though he had no strength left, he was not gentle. She fell off the bed onto the damp floor. The next morning, Dean was gone. He took nothing with him but the mold spores growing in his lungs. If she were prone to the maudlin, Bianca would admit that he also took her heart.
In the passage, Bianca reflects on a difficult encounter with Dean. Despite his lack of physical strength, his actions are described as anything but gentle, leading to her falling to the floor. This moment illustrates the turbulent nature of their relationship, highlighting a dramatic and painful interaction.
The following morning, Dean vanishes, leaving behind only the remnants of their tumultuous connection, symbolized by the mold spores in his lungs. Bianca feels a deep sense of loss, suggesting that although she doesn't openly mourn, there's an unspoken acknowledgment that he has taken a significant part of her emotionally, notably her heart.