It's rude to stop talking to someone.
Jill and Yolanda are in a long-distance relationship.
Jill wants to break up with Yolanda.
Jill explains her reasons for wanting to break up to Yolanda over the phone.
Jill suddenly cuts off all contact with Yolanda and disappears.
Yolanda is sad but understands.
Yolanda feels worried about Jill and devastated that she's been abruptly dumped.