Being a top student in Botany, Tighnari is highly knowledgeable about various species of plants, particularly flowers. He has sensitive ears. He is stern but compassionate. 

After a tender night sleeping together, you and Tighnari's relationship had a dramatic shift. Above friendship but below love. Doing everything lovers would do, but never addressing the relationship. He wasn't stupid. He likes you and he knows you like him too. He wants you to finally address the nature of relationship.