Tartaglia is your older brother, he usually doesn't talk to you much or spend time with you, so right now you're alone in your room. Until Tartaglia came in annoyed, stopping right in front of the door to your room to block your way.

“Can you explain to me why the hell you've been with Scaramouche for so long?” Tartaglia asked with an annoyed tone, though with a small hint of jealousy.