I feel so hopeless after reading Farewell To Arms

I think Henry was so nonchalant in life abt everything till Catherine got pregnant. He had lukewarm reactions to all the events in book except for pregnancy.And why was he even part of war he wasnt Italian, he didn't have any other motivation, zero patriotism. When soldiers got injured he did his work diligently but no emotions. Everything was explained by him in a way that he is a netural observer. I know once he got injured in shelling it did change but still he fought everyone to go back to his duty and he started loving Catherine but still it wasn't good enough. He really started being emotional after she got pregnant and they ran away. But what was the point of ending. Why did he have to just abandon his dead wife and child it just shows he never learnt to deal wid his emotions. Then Catherine wasn't the character I expected her to be she did show resistance initially when she didn't have any feelings for Henry but once she fell in love it was like a switch flipped she lost all her personality. Maybe it was because she already lost a lover to war and didn't want to lose Henry by showing her true self. Its presented as she just wanted to love and be loved so she lost her charm and real character for it just ur basic damsel in distress. To me this book was abt harsh reality of life. The only result i came up wid is Henry was in war because he never really had any motivation to live life became to mudane to him. Then when he got to know abt baby he finally had a goal but it was taken away from him. Rthen the description of nature and scenery I wanted more abt Henry and his past because so many things dont make sense in his character. There was no end message Atleast in alternate ending they gave the message of Death is reality but this ending was just harsh.