Justin Bieber — Weekend Long Love-Fest With Selena Gomez

EXCLUSIVE

Justin Bieber‘s been dropping a four letter word on Selena Gomez — but it’s not the one you’re thinking.

Sources accurate to the couple tell us J.B. and the Gomes spent the entire weekend together … and it was filled with lots of “I Like You” talk on both ends.

It’s been less than a week since they got back together … but we’re…