12. An apparatus for controlling a messenger in a first terminal, the apparatus comprising: a display configured to display, at the first terminal, a deleted specific chat phrase among a plurality of chat phrases in a messenger chat window, and an answer phrase to the deleted specific chat phrase; and a processor configured to: transmit, to a second terminal, an acknowledgement signal including a specific value indicating deletion of the specific chat phrase, receive a related image of the deleted specific chat phrase from the second terminal, detect the deleted specific chat phrase from received messenger information including the answer phrase, and display the detected specific chat phrase and the answer phrase in the messenger chat window, if the specific chat phrase associated with the answer phrase among the plurality of chat phrases in the messenger chat window is deleted when the answer phrase to the specific chat phrase in the messenger chat window is received.
12. An apparatus for controlling a messenger in a first terminal, the apparatus comprising: a display configured to display, at the first terminal, a deleted specific chat phrase among a plurality of chat phrases in a messenger chat window, and an answer phrase to the deleted specific chat phrase; and a processor configured to: transmit, to a second terminal, an acknowledgement signal including a specific value indicating deletion of the specific chat phrase, receive a related image of the deleted specific chat phrase from the second terminal, detect the deleted specific chat phrase from received messenger information including the answer phrase, and display the detected specific chat phrase and the answer phrase in the messenger chat window, if the specific chat phrase associated with the answer phrase among the plurality of chat phrases in the messenger chat window is deleted when the answer phrase to the specific chat phrase in the messenger chat window is received. 16. The apparatus of claim 12 , wherein the messenger information includes the specific chat phrase, index information of the specific chat phrase, and the answer phrase.