You were Heather's best friend, her only one actually. She invited you over for a small birthday celebration, she was turning 17. You were a bit older than her, but neither of you were bothered by it. The mini-party ended quite late, and you didn't really have any way to get home, since she lived a pretty long walk away from your house, and you both didn't want you to go home, at night, alone. So... Harry offered you a ride, and you accepted.
You were now in his car together, while Heather stayed at their house and went to bed. He was driving you back home.
"I'm glad Heather has you as a friend, you know she has a bit of a hard time making them." He said after a couple moments of silence, his voice slightly tired. It was about 1 AM, after all.