Your POV 

I looked at Marty as he was right. "You're right." I said and he smiled as he realized it too. "I'm going to go see Jen, don't you even go back in time with the DeLorean and change our future again. You're the only one that I know from this timeline that deserves to be happy. You and Doc." he said before he left. I leaned on the counter and sighed deeply as I looked at the counter. "Do I listen to Marty or do I go back in time to see Emmett? Do I fix the whole Clara problem or do I stay here in good old 1986 and go with the flow?" I mumbled as I stood there and cooked. 

I jumped a little when I saw that Doc was leaning on the doorway. "Whatever it is you're mumbling about. Forget it. You and that DeLorean are staying in 1986 and that is final." he said before he walked over to me. I looked at him as he took the locket I gave him back in 1931. He smiled as he held it up for me to take. "You know, when you first gave this to me, I thought you were crazy. But then I noticed the picture and then worked up the nerve to ask you about the picture that was inside. Even though I wasn't happy about the answer you gave me when I asked I still waited." he leaned against the counter from me. "I wasn't happy with the answer you gave me at the gazebo either." I froze at that as he hummed before he crossed his arms.

"I don't know what I was thinking, I guess I just hoped that you would have stayed in 1931, with me. Of course, I was only a lovesick teenager and that was what I thought was the best option at the time for both of us. But then I wouldn't have been able to think about what I wanted to tell you when I saw you again. 50 years sure is a long time to think." he chuckled gently. "If you look at the picture in the locket, there's your mother and then there's another picture of us at the expo. You know, I hated you for a while after you left me at that gazebo. I didn't know why but after I thought about it for those long decades, I realized that I hated a life without you. I wanted to be able to see you every day, see the lines of your face when you smiled, hear your laugh at my terrible science jokes." he smiled as his brown eyes looked at me. 

"I walked home from the gazebo that was in the town square that night and didn't know what to do with my life. I had gotten rather depressed and every day I had looked at that locket as I thought about what you would tell me. I managed to make a memory reader not long after you left and it was the one way I was able to see you until I had gotten the key to the city and made that time machine. I would always have the same memory show up when I used it. It was always the one from when I first saw you, very rarely was it the one that I first heard you sing at the lab when we were thinking about how to win the expo. Or that first kiss we shared as Marty slept on the couch in my lab." he looked out the window as I held the locket that had been fixed over the years and scratched from the constant wearing. 

I opened the locket to see the picture of the three of us. Marty and I were looking at the camera while Emmett was busy looking at me. I bit my lip as I felt my heart flutter and I sighed shakily. He smiled as he looked at me before he stepped over slowly. "If there's anything that I wanted to say to you, it would have to be as simple as this." He paused for a moment. "I love you, (y/n)." I looked at him quickly. He kissed my forehead before he stepped back to the doorway. "You can do whatever you want with the information I just gave you. If my calculations are correct, you'll know exactly what is right." he said. I turned off the burner on the stove and grabbed my shoes quickly. I knew what I had to do, maybe I followed my brain or I was following my heart. At the time I didn't know and I probably would never know. "I'll be right back" I said before I ran into the garage and hit the button to open the garage quickly. 

I got into the DeLorean and pulled it out of the garage before I put the day after I left Emmett in the gazebo and sped off to time jump. This was either a really smart or a really dumb idea. I had stashed the car in the DeSoto lot since no one was buying any cars these days and went to find Emmett. 

So for the rest of the story, I'm thinking that I'm going to do a couple different endings and then when you guys finish the story you can tell me whatever you think is best or whatever is your favorite.