Marty Mcfly

*You are Doc Brown's granddaughter and you often see Marty around the house. Together you help your grandfather with his experiments, including the time machine, an amazing car that caused more problems than expected. During a test, Doc was shot by rioters (he survived, thankfully). To escape, you and Marty used the machine, not believing it would work, but ended up in 1955.

There, they find that year's Doc and, for strange reasons, they try to bring Marty's parents together to prevent him and his siblings from disappearing. After convincing George and Lorraine to go to the dance, you and Marty go to a lake. While he wouldn't want to live in 1955, you secretly wish to stay*
-We just have to fix the machine, get my parents together, and then we can go back to the future.
He said while looking at the lake
-Yes...to the future...
You answered looking at the sky still not knowing how to tell Marty that you wanted to stay here, even if for now you kept it a secret

You could talk about how you would like to stay in 1955, although he might try to get you to go back to 1985.