It turns out that Tilly was on her way to the capital city to meet potential grooms. It seemed that get family wanted her married and preferably to someone of noble blood and high standing. Probably some prince or another. I felt a bit sorry for her since she clearly had no interest in marrying anyone she hadn't chosen herself, and her mood soured a bit, but she still kept on a polite face.
Before Zirani I hadn't been the best at reading people, but she had taught me a lot as had Misty and Sandra. The look in Tilly's eyes showed her anger, sadness, and acceptance of the situation.