Identification

I need to go back to Lowe's and figure out what this plant is called.  I followed my heart when I bought it because I liked the dark color of the leaves.  But that pretty little violet flower appeared a few days ago.  So not I'm curious what this plant is called.  I thought maybe Black Eyed Susan, but I'm not seeing variations of these colors when I search on the Internet.  

To be continued.....