It's unlikely that Sansa knew anything about "gay". She sees a handsome gentlemanly knight.
I like the old Thorn Queen who called Loras a sword swallower from way back. The best match there could possibly be is Cercie and Loras. She will no longer be a brood mare, can have her beloved brother at her side, and Loras will be absolutely free to dally with whoever he chooses. It's perfect. And, if Cercie has more children from her brother, they will be heirs to Highgarden. Although it's unlikely that the Tyrells thought that part through enough.
I like the old Thorn Queen who called Loras a sword swallower from way back. The best match there could possibly be is Cercie and Loras. She will no longer be a brood mare, can have her beloved brother at her side, and Loras will be absolutely free to dally with whoever he chooses. It's perfect. And, if Cercie has more children from her brother, they will be heirs to Highgarden. Although it's unlikely that the Tyrells thought that part through enough.