I fell in love with a girl when i was a kid i never saw her again and now i cant really get into a girl?

ok so it happened when i was in Greece when i was like 10 or something i saw her walk down the aisle and freezed i couldn't move at all i just stared in front of me it was like time slowed down but was going fast at the same time. after all that i finally looked back and she was gone after that i went home and i kept wondering who that girl was and till this day i still am and now every girl i meet is like plain and normal... its like because of that magical moment all other moments seem boring and stupid what do i do?