break my heart

You say this to someone you find attractive or someone you want to be with.

from a simpson's episode; the act of splitting one's heart in two.

typically the first thing that comes to mind when you think of a past gf or bf. when you remember all that was and could have been and then remember how they screwed it up so now you you just draw pictures of broken hearts and try not to cry when you pass them in the hall and they completely ignore you