I dreamt about my ex crush in elementary school many times

Was in Elementary school 12 years ago but i keep dreaming about my ex crush in elementary school sometimes until this time (i am 21 now), the last time i met him was 12 years ago, after we graduated we never see each other. I never confess my feeling to him. And now I don't have his contact at all. Should i find him or should i just let it go cuz it just a radom dream??