Tigertaur is a BEAST-Type who appears to be a mix between a tiger and a centaur. From what we know, she admires Yoki's strength and want to fight her. However, Claire came in with a yarn ball, which leaves Tigertaur distracted, as she returns to her supposed true form, a small cat.
Based on the Relationship Chart in one of the game files, She has a relationship with Aimottle, Claire and Yoki. Though we do see a relationship with her and Yoki and Claire, we do not see her relationship with Aimottle in game. In the relationship chart it says that Aimottle finds Tigertaur intimidating.