Odessa here is a fellow firstie and she used to be a Hogsmeade resident. She probably frequented Twilfit & Tatting's, so she and Rowan could know each other since before school. Odessa is Thom Pettigrew's oldest child and only daughter and she has always been spoiled. She tries not to act spoiled, but she may still come off as privileged anyways. She's always striving to be a proper lady too.

She's also the sort to take criticism really close to heart, she might have asked for Rowan's opinion on a dress during a shopping trip and Rowan was her honest self and Odessa was D: