I wanted to get somebody for him. I wanted to go into the room where he lay and reassure him: “I’ll get somebody for you, Gatsby. Don’t worry. Just trust me and I’ll get somebody for you—”
Nick cares about Gatsby. He wants to make sure he is not alone. It also shows how abandoned Gatsby is at the end.
until long after there was anyone to give it to if it came.
Gatsby’s hope was almost gone. Although he waited for the phone call, he likely knew it would never come. The call maybe symbolize the end of Gatsby’s dream.
After the armistice he tried frantically to get home, but some complication or misunderstanding sent him to Oxford instead. He was worried now—there was a quality of nervous despair in Daisy’s letters. She didn’t see why he couldn’t come. She was feeling the pressure of the world outside, and she wanted to see him and feel his presence beside her and be reassured that she was doing the right thing after all.
Daisy’s decision was shaped by fear and pressure than by a lack of love. She need reassurance and stability, but Gatsby couldn’t give her at the time, this is the reason why she turned to Tom.