HELP!!!

I visited a dear friend this morning who has a wonderful rock garden (see June 7). She has this lovely, filmy pink flower blooming, but neither she nor I could figure out what it is. The leaves are very similar to aquilegia: 3 lobed, but the flower just doesn't jive. It has reseeded itself several places in her garden. Can anyone help with a name?

She also has a Korean lilac tree that has the most delicate, tiny, pale pink flowers that smelled heavenly. Her Japanese iris was out, but the most exciting flower she had was a dark purple iris.

Not only did we have a great flower look, we also had a great visit!