A Little Bit of Dialogue

"Shit," she muttered to herself a little louder than intended.
"What's wrong?" he asked.
"Nothing," she said.
"Is it your knee?" he asked.
"No, it's nothing," she said. "I'm fine."
"I've never heard you curse when everything's fine," he said before dropping it. They stood there together watching the band a little longer before he turned back to her. "Do you want to stay over tonight?"
"Then you'd know that my knee's killing me," she admitted.
"I already knew that," he said. "But I can take care of you."
"You don't have to do that," she said.
"I know I don't have to. I don't want to take care of you because I feel obligated to. I want to take care of you just because I want to. We can prop your leg up with pillows. I'll get you a bag of ice and some ibuprofen. I'm a good doctor."
She looked at him for a second before kissing him lightly. "You're a good boyfriend."

These characters don't have names or a story, I just kind of came up with this and liked it.