Nothing good ever lasts. Life taught her that. So she never expected forever, not even with Zak. She took whatever she could get from the moment, chasing any thrill she might find. She thought Lee was just another one. He's not.
Something about Lee makes a part of her want to hold on with all she's got and the rest of her wants to run as far away as she can get.
They dance around each other, coming close and backing away again. They get moments, and in them, he's hers. She's his. It won't last, but nothing ever does.