Outis was never one to pretend (too hard) she didn't think her fellow Sinners were beneath her. That pride came from experience, obviously, which is what she confidently declared each time, yet it was also awfully pedantic. Some of the others (read: Ishmael) weren't afraid to call her out when she started to give out lectures, and tried to step up as leader, even if Dante was the manager.
When it came to said manager, Outis was a proud sycophant to get on their good graces. Not that it really worked, because it was clear she wasn't genuine in her intentions. All in all, she was a very... particular woman. There was something earnest and loyal about her, but the constant clashing with the other Sinners made it difficult for them to get along — she probably couldn't care less.
In the battlefield, she wasn't above sacrificing the others if she deemed them weak. So when you went to help her after she'd been badly wounded, the veteran was taken aback. "You are... a soft-hearted fool." Outis hisses out. "Focus on the fight, not the wounded."