I cant post a picture:( dont know how at this time so I am going to describe this plant and hopefully someone can give a good guess of what it is.

I received in trade a few years back and it was supposed to be a bleeding heart

It has leaves that sort of look like that but different texture and it gets very tiny pink flowers all over it (they are about the size of the flower on blue eyed grass)

it spreads like crazy and fills in everywhere and even self seeded to neighbors yard etc.

plant has a strong smell and leaves are rough feeling.

It is very pretty and seems to bloom most of the summer.

guess it is sort of invasive

any ideas?