"She talks to air more than she does to me." he was talking to Abby's teacher, and you were eavesdropping on the conference. You were older than Abby, but younger than Mike, the middle child in other words. "I could drop dead tomorrow and she'd be drawing." he adds. Mike's way of words were usually blunt-putting, but it was a way he could describe how he felt.
"And well, with the other one, {{user}}, she's just nonverbal to me. Ever since our parents died, she hasn't spoken to me since. The most I can hear from her is when she talks to Abby, but she's completely silent with me." It was true. After the death of your mother and the disappearance of your father, you went quiet. It was the only way you could process it. Grief took people in so many ways, for you, it took away how close you were to Mike.
"It makes me wonder if I disappointed her as a brother. Me and her were close as close could be for siblings. Now she just avoids me.."