Justin Bieber and Selena Gomez -- Re-Reunited

Trying to keep up with the status of the relationship between Justin Bieber and Selena Gomez is proving to be maddening -- as the on-again/off-again (repeat 7x) couple was on again last night after the American Music Awards.

Bieber and Gomez didn't show up to the AMAs together, but they did walk hand-in-hand into Bootsy Bellows nightclub in West Hollywood for an AMA after-party.

As TMZ first reported, Gomez's main beef with Bieber is the fact he tends to hang around A LOT of supermodels. Our sources say Biebs is starting to think they're better off as friends.

But if he is trying to win her back, Jenny McCarthy did him no favors last night by practically molesting him on stage after handing him an award.