Pacific Northwest Gardening: Apropos of Nothing v.3, 1 by

wrote:
Willow, your courtyard is lovely!
Kayte, I envy your ability to go 'pick up' some manure. I wish.
Sinus parties are complete downers. I'm always fighting that this time of year. Generally wake up with a headache. Boo hiss.
Slow headway on the front border. Time is the element which is lacking.

Now, apropos of nothing, does anyone recognize this plant? I believe it came with another plant as a volunteer. I've been growing it on for over a year with some setbacks due to too much sun, lack of moisture during the summer. Possibly an impatiens? It appears to like bright, filtered light and consistently moist soil. Finally, I have a bloom.