You know, I have complained that the only times I dislike Martha is when she's making googly-eyes at the Doctor, but I think I would not mind Martha making googly-eyes at the Doctor so much if the Doctor was not . . . clearly making googly-eyes back. Hmm.

Give Martha a boyfriend! That'll alter the dynamic. Or even just throw in another Companion to shake things up and force Russel T. to write in different combinations?