That Thing You Do.

i just don't understand one thing (well a lot of things actually, but this one tops the chart)

how is it possible that the person who made u cry a river, tore your heart up into tiny little pieces sometimes until u cant even figure out how to put it together again, the one who stole nothing from you yet still left you feeling lost and empty, is the same person who you're most comfortable with, who can make u smile in between tears, make u laugh out loud when u dont even feel like it, the one you've come to realized u just can't live without?