How to not save a life

I had a call today for a frequent flier drug abuser. He was my age. A few years ago he tried to kill himself when his girlfriend dumped him....he jumped off a bridge and survived. Since then he has pain and he is addicted to narcotics. When we got to the scene the firemen were yelling at him for calling all the time. I was tired and was awakened from my nap and not in the mood for drama. They said he was giving his meds away to pay for rent. They said the police would meet us at the er. It didn't really matter he was still going.we loaded him up. I was impatient with him. I was annoyed too! He told my partner he was respectful and was appreciative of him. The doors closed. He asked for the radio and I told him no. People who call 9-1-1 don't need it. He freaked out when I turned the heater on and muttered about thinking it was the air and he was cold. I feel bad cause I really didn't care. I talked to him about insurance and he said he had none. Stated he paid with cash and I didn't believe him. When asked how he got home from the er he said his grandpa picked him up but would not drive him there. I remember his white socks....he had no shoes I asked why he said he can't wear them. His socks were not too dirty and I didn't believe him. He asked if I was done yelling at him. I guessed I was. We got to the er told the staff his story he was there 3 times over the weekend. He is a drug seeker. They offered him tordal while I was finishing paperwork. I guess he denied it cause by the time I came back he had left. I passed him on the way out and saw him on the phone.... Must have been calling grandpa. I don't think he answered because I saw him walking out a bit later. I never said another word to him.
Later on I ran into a friend who said he just ran a call for a guy who jumped off a bridge and killed himself. It was him.
I feel bad. I wish I had been nicer. I wish I had been more understanding. I wish I would have cared. I don't know what to think from here. It's hard to keep caring when they call nonstop for nothing.....but I think the way I feel now is harder. I keep thinking if only I would have tried harder to help him...to comfort him.....would it have helped? I don't know.
I saw the story on the news.....I saw the pictures....I saw the socks. I should have done more and forgot about the socks because they didn't matter. This call is making me feel sick.