is it possible for anything to truly be forgotten? i don't think so. ancient greek graffiti still creeps on the walls of pompeii. telling the tales of the everyday ordinaries. starkly eternal reminders of things such as grudges, curses, brags, screws... and love.
if ancient greek life can be known of even now, why not our lives? write about everything. centuries in the future, someone will be reading about 'the history of the 21st century'.
make sure that that someone in your future will know how strongly you loved in their past.