Anyone know what this is?
Maybe Torena? The leaves look right.
Here is a link that might be useful: Images of Torena
It's Torenia Fournieri, also called wishbone flower or summer pansy. It's a wonderful self-seeding annual that is an excellent summer bloomer that does beautifully in shade or partial sun. I purchased a couple of 4" plants around 8 years ago and have had volunteer seedlings every year since then. The volunteers show up after the soil warms a little.