(TMZ) - Selena Gomez spent the last day blocking her phone numbers and other
communication devices so Justin Bieber cannot contact her, TMZ has
learned.

Sources familiar with the situation tell TMZ that
Selena wants no contact with Justin, so whatever they tried hashing out during
their sit-down last Sunday didn't work.  She has blocked her phone (which
includes texting).  For some reason, she's still following Justin on Twitter,
but we're told she's blocked him on all forms of
contact.

And TMZ reports that the breakup absolutely,
positively involved another woman, though TMZ's sources didn't know which one. 
There's been speculation that it's a Victoria's Secret model.  It's not for
certain if it's her, but TMZ reports it involves another
woman.