I guess we all have a broken heart at least once in life...when it's broken you can't put it back together because there are pieces that are lost forever..but you'll fond the right person with the pieces you need and you have the pieces the other needs and together you complete each other I guess that's what people mean by your my other half..or I guess it means your like soul mates part of them
she moved on, and I feel sorry for you, because she thought you were the most amazing boy ever. if she could have had any guy in the world, she still would have picked you. now, you're just another part of her past, a memory more faded every day. and someday, she'll find the one she deserves, and he will make her the happiest girl in the world.