get the message

get the message (to understand what someone is trying to tell you, even if they do not say it directly) — понять, понимать, что до тебя хотят донести

sb won't get the message (that)— до кого-л не доходит, что

Example: I don’t want to see him any more. Why doesn’t he get the message? (MM)

Example: Now I'm at the breaking point, because she won't get the message that we need some space. On top of that, she is a party pooper. How do I tell her that she is getting on my nerves without hurting her?