Remus, so often melancholy and lonely, was first amused, then impressed, then seriously smitten by the young witch. He had never fallen in love before. If it had happened in peacetime, Remus would have simply taken himself off to a new place and a new job, so that he did not have to endure the pain of watching Tonks fall in love with a handsome, young wizard in the Auror office, which was what he expected to happen. However, this was war; they were both needed in the Order of the Phoenix, and nobody knew what the next day would bring. Remus felt justified in remaining exactly where he was, keeping his feelings to himself but secretly rejoicing every time somebody paired him with Tonks on some overnight mission.
One night when they lay in hiding outside a know Death Eater’s house, after a year of increasingly warm friendship, Tonks made an idle remark about one of her fellow Order members (‘He’s still handsome, isn’t he, even after Azkaban?’). Before he could stop himself, Remus had replied bitterly that he supposed she had fallen for his old friend (‘He always got the women.’). At this, Tonks became suddenly angry. ‘You’d know perfectly well who I’ve fallen for, if you weren’t too busy feeling sorry for yourself to notice.’
And the meaning of Tonks’s Patronus and her mouse-colored hair, and the reason she had come running to find Dumbledore when she had heard a rumor someone had been attacked by Greyback, all suddenly became clear to Harry; it had not been Sirius that Tonks had fallen in love with after all.
“But she wants you,” said Mr Weasley, with a small smile.