I changed this one several times. And I think it got worse.

I was on a very full train recently and I, and the girl next to me, both offered our seats to an elderly couple. We were waved away, told they wouldn’t disturb us, and that they’d find their own seats.

After the assumption that we were a couple the girl and I sat awkwardly for the rest of the trip. She then complimented my artwork as she left for her stop.