So, nothing's changed for Oliver. He's still strongly dislikes Selina.
You might wonder why this would bother her. Ultimately, Selina's biggest fear is not being accepted. This insecurity was a major hurdle for her to overcome when she first came to Agraria and couldn't believe it when Silas made his feelings known to her. She's worked hard to win the love of the people and wants to be a queen everyone admires. So it really gets under her skin that this one guard refuses to respect her.