Jennifer Lopez Shares Cryptic Message About Protecting Your Heart Following Split With Casper Smart!

Is this a message about Casper Smart?!
On Friday, Jennifer Lopez took to Instagram to share a snap of herself (above) all dolled up as her Shades of Blue character while shooting in Queens.
Related: J.Lo Is All Smiles Post-Breakup!
But, the photo also features some sidewalk art that read "Protect Yo Heart."
The actress shared the photo from the show's producer Elaine Goldsmith Thomas, whose post actually cut off part of the graffiti.
Miz Lopez included the full photo, and replied to the TV exec