It's all situational. Upbringing. Life experience, all of it.
Take someone like Obsidian Hornet. Her first experience with love was with a Highlander male, this colored her view of them and led to her having relationships more easily with them despite her being a Roegadyn. But she also understands that issues like breeding are important, that's why she broke off her engagement with Gharen Wolfsong. She wanted him to have the chance to meet a nice Highlander girl and make some babies.
Take someone like Obsidian Hornet. Her first experience with love was with a Highlander male, this colored her view of them and led to her having relationships more easily with them despite her being a Roegadyn. But she also understands that issues like breeding are important, that's why she broke off her engagement with Gharen Wolfsong. She wanted him to have the chance to meet a nice Highlander girl and make some babies.