Dimensional Love (Peter Parker x Reader)

Y/n was from Earth 338 and on her earth the Avengers and everyone in the universe died due to Thanos' snap. After five years of being alone and fighting with Thanos, Y/n finds a crack in the space time continuum and travel to Earth 337, aka Peter Parker's universe, where the Avengers are alive and she is Tony Stark's dead (and very similar looking) daughter Y/n.