Byron Montgomery has a secret, and his daughter Aria knows it: he cheated on his wife.

Byron is a college professor.

Byron Montgomery Quotes

Byron: I don't wanna leave.
Ella: I don't want you to stay.

Byron: She asked me for space.
Aria: She moved out. How much more space does she need?

Pretty Little Liars Quotes

I got it confirmed, Andrew Campbell was adopted.

Aria

Aria: My friends thought you had nice legs.
Ezra: What did you think?
Aria: That I was embarrassed my friends thought you had nice legs.