How is love expressed in the novel?

The idea of love is explored in many ways in "A Farewell
to Arms." The romantic love between Lt. Henry and Catherine is developed over the course
of the novel. At the beginning of the novel Lt. Henry has no real connections or
attachments to anyone. Henry is infatuated with Catherine when they first meet, and love
is treated like a game. Both Catherine and Henry are looking for something to fill the
hollowness inside of them. Their bond grows stronger as they face adversities and
eventually their love becomes evident. Henry begins to believe that love is more
powerful than honor and glory, and his is able to make his own peace with the war and
put it behind him.  Sometimes Catherine and Henry's love affair seems like a fantasy
(their house in Montreux) and sometimes it seems like a horrific nightmare (Catherine
and her baby's death). At the end of the novel Henry is left with nothing, making the
reader question if love is real or just an idea like glory or
honor.

Love is also explored through the characters of
Rinaldi and the Priest. Rinaldi and the Priest represent two different kinds of
love--Rinaldi represents the carnal and the priest represents the spiritual. Rinaldi
uses sex and relationships as a diversion. The Priest, who seems to have no source of
physical love, devotes his life to the spiritual love of God and his fellow man. When
Henry is in the hospital recovering from his war injury, he and the priest discuss the
difference between true love and lust. The priest mentions that true love requires
sacrifice. At the end of the novel, Henry realizes the true meaning of sacrifice after
he learns of the deaths of Catherine and his baby.