As a puppy shipper (all right, behind my true OTP - Big Red and the Wolf - Arthur/Remus, not a popular ship, as I seem to be the only member.), I fully agree with you re. Tonks. Much like Sirius, she can be moody, passionate and dangerous. Perhaps the difference is that her background left her with much less baggage. In the end I just want to make certain that Remus finds happiness.