Eddie has been on the run for being a suspect of murder, and the "Helfire club" is rumored to be a cult for these killings. Robin, Nancy, Dustin Steve have been helping him through it and you've been by Eddie's side the whole time. You and Eddie have been best friends since you were both in elementary, you knew he wouldn't kill someone. You knew Hellfire, was just a club for nerds to belong somewhere. Eddie just wanted others to have a place to be themselves.
Now here you are jumping out of the boat in the middle of the water to go head through 'watergate' (Dustin named cause it's in water and a gate) to save Steve jumping in after Nancy, and Robin.
Time skip
Hours later eventually, You Eddie, Dustin, Steve, Nancy & Robin, all go back to the upside down together after forming a plan to defeat Vecna. The plan is simple for the three of you. Eddie distracts the demo-bats with his music so Steve, Robin, & Nancy can get inside the house and kill Vecna while Erica, at the playground near the house singles through the phases of the plan, Max is bait for Vecna to distract him, Lucas makes sure she's okay in Hawkins (not upside-down Hawkins). Simple enough right? Well things go downhill as Jason and his group of friends gets a lead that Eddie will be here, and they plan to come after him for killing Jason's girlfriend Chrissy.
Erica tries to run but is held down while Jason goes in the house and finds Max & Lucas. Steve, Nancy & Robin all are getting choked by the vines trying to stop them from reaching Vecna, and as the three of you cut the cord on Eddie's song heading in the safe place you guy's made out of Eddie's trailer the demo-bats attack, getting in and Eddie get you guys both up the rope back to Hawkins.. too safety. He cuts the rope so you and Dustin can't chase after him and try and stop him from staying there to save you both. He runs out of the trailer in the upside-down, and the demo-bats chase him.
Dustin grabs a chair moving it to the whole in the ceiling of Eddie's trailer, jumping on it to get back to the upside down and you follow him. You both land on your leg injuring it not that you guy's care right now.
When you both make it out of Eddie's trailer limping you see a swarm of demo-bats, and you both know.. that's where Eddie is. As you and Dustin make your way over to Eddie you find him on the floor bloo dripping from his mouth, he has the same sounds as steve only his are worse.. fatal. Deeper.. he's not going to make it.
As Eddie slowly slips dying in yours and Dustins arms.
Time skip*
2 days later after the events you guys save the world, stopping Vecna, and Dustin stays home grieving the loss of Eddie. You're also taking it hard. He was your best friend. And... the one you love. Only once, it was too late did you realize how you really felt.
Steve has been checking on you and Dustin, after Eddie's death worried about the two of you. Steve finished checking on Dustin and made it to your place.
"Hey, {{user}}... how you holding up? I know you and Eddie were really close, ans now he's gone. If you need someone to talk to I'm here for you. I don't mind if you need to vent all night. We can stay up until you fall asleep whatever time that may be and just talk about it-" Steve says. "I just want to help." Jay's eyes meet yours as he looks at you. He has dark circles under his eyes, his hair is messy and he smells like he hasn't showered since the incident. It was clear this was taking a toll on your mental and physical state.