Disclaimer: I don't own Supernatural.
Sam's View on Things
Sam didn't know what was going on with his going on his brother. "He's acting weird," Sam had declared to Bobby two days after leaving the hospital. Bobby had given him a weird, which Sam still didn't understand why.
Sam also didn't understand why Bobby and Dean were lying. They were trying to tell him that John was dead, but Sam knew better. John was back on the road, hunting for the demon. He had abandoned Sam.
Dean was working on the Impala, which Sam was grateful for. That meant that Dean wouldn't tell him lies about Dad being dead.
Both Dean and Bobby wanted Sam to see a therapist, but Sam refused. He wasn't even sure why they wanted him to go to therapy. They probably wanted him to believe that Dad really was dead. But Dad wasn't dead. Sam wished people would stop saying he was.
Sam and Dean had been hunting a clown a week earlier (Sam was still having nightmares about clowns mixing in with bright light and the sound of twisting metal.) when the two had met Ellen and Jo Harvelle. Dean had told them that John was dead, but Sam had told them that Dean was lying. John was fine. He was out on the road.
Dean had gone into a back room and talked with Ellen and Jo for awhile. Sam wasn't sure what that talk had been about, but he was pretty sure Dean had hit on Jo.
Sam wanted to go and find his father after the car was fixed, but Dean had said no. "You're being selfish," Sam had screamed at Dean after he said no.
Sam was going to prove to his brother that John wasn't dead. Because he wasn't.
TBC
I wanted to Sam's point-of-view on his father "being out on the road." I think I really got into his head here.