Hello! I`m new to the forum, and, sorry if this question has already been asked, but I want you to clarify something for me

Alright, so let`s say you travel from Europe to America and then continue on. At some point, on a spherical shaped Earth you would return to where you came from, Europe, considering gravity and the planet shape, among other factors. BUT, how do you explain this on a Flat Earth? How come you return to where you came from on this so-called Flat Earth?
A force pushes you as you go along towards the edge and takes you back to where you came from, or something? Please explain.
Thank you.