Is Chris Brown back to his ex, or are they just friends?

Okay so little woman beater Chris Brown is out and about again, but this time its not with his known Rihanna girl, but his ex girlfriend. Yes believe it.
Despite all the believable rumors that he and Riri are back together after that horrible incident that left the Umbrella star hospitalised, it seems they might not be that much in love as they claimed to be when the scandal surfaced. I couldn't help but wonder why his ex was on his side when he was still with Riri?
Hhmm guess its a Brown thing...
READ THIS:

The stunning new girl on Chris Brown’s arm, Natalie Mejia, tells RadarOnline.com exclusively that Brown has been a total “gentlemen.”

Mejia, of The CW’s Girlicious, was spotted with the embattled R&B singer this past Saturday in Los Angeles, visiting a Sunset Blvd tattoo parlor.

Meija tells us “it’s true we did visit a tattoo parlor together but I can’t say if we got anything done because that is personal.”

While reports that the pair visited the shop for just ten minutes, Mejia says “things are going well between us but I really do not want to comment much more than that right now.”

The sexy singer maintains that Brown “has treated me like a gentleman at all times actually and there are no complaints.”

She would not elaborate on she and Brown’s initial meeting or courtship thus far.

She does wax philosophical on her MySpace page, however:

“Life is too short to wake-up in the morning with regrets. So love the people who treat you right, forget about the ones who don’t and believe everything happens for a reason.”