Most in Jesus' position wouldn't even talk to her. She's a Samaritan and a woman.
Jesus offers her living water, that will satisfy forever. She asks if He is greater than Jacob whose well they sit at (He is). He gets personal, asking for her husband, knowing she has none but has had five. She raises the theological dispute between Jews and Samaritans. Jesus says the Jews are right , but that won't matter now that Messiah is here, talking with her. When the disciples return, she goes into town and tells everybody Jesus prophesied her whole life, and they come out to see Him. Meanwhile Jesus prepares the disciples for their arrival. It isn't time for physical food, but to reap a harvest coming to meet them.
Back in Cana, a rulers son from Capernaum is so sick he's almost dead. He goes to Jesus in Cana, and He says he will live. The man goes home, and he's better. He asks when he got better and it was the time Jesus spoke with him.
- Don't be distracted from spiritual things by physical needs. The woman was focused on water, the disciples on food.
- Jesus knows everything about you, and can heal your wounds (physical or otherwise) wherever you are.
"And we know that this is indeed the Savior of the world" - John 4:42.