Go to Groton or Wait for Phillips?

OP: If I understand correctly, you were admitted as a boarding student at Groton, but are on the waitlist as a day student for Andover & Exeter.

(OP wrote “my mom works near Andover and Exeter so we would move there. For Groton, I’m probably just going to board.”) This is confusing to me as Andover & Exeter are not really located close to one another.

Is my understanding correct ?