Justin Bieber Back Together with Selena Gomez?

Justin Bieber posted a picture with Selena Gomez over the weekend, does this mean they're back together? Who can figure this out?

Even Beiber's mom Pattie Mallette doesn't know if they're back together.

While on “FOX & Friends” this morning to discuss the new teen version of her book “Nowhere But Up,” Bieber’s mom Pattie Mallette was asked whether the famous couple is back together. She replied, "It depends what day it is. I can’t keep up."

Pattie Mallette three months ago ...

Justin Bieber's mom Pattie Mallette on singer's recent troubles.

Nine months ago on The Ellen Show ...

Pattie Mallette on Justin Bieber and Selena Gomez.