I had a "half" girlfriend in 4th grade. She liked me one day and liked another guy the next, she came back to me in the end but we hung out less and less and she started hanging out with my younger brothers more (in a friend way of course, perverts.) Best part was that she lived in the other side of our duplex. Honestly, I probably could've scored with her had I known more about the birds and the bee's. Tis a shame.