At first, your heart is soft and round
it lets anything in because it does not know a heartache
when it lets that person in it grows bigger and bigger for all the new things you do together

but

that very first person will take scissors to the soft, round, lovable heart and cut into tiny, little shreds (not meaning to)

slowly day by day you look and find those tiny, little shreds and sow them back together

but

this time you are building your armor for your heart. you know it can not take another break like the first so you build this armor strong and hard because you have sat down at 2 in the morning wishing someone would take your heart out of you chest so you would not feel anything  anymore