Justin who?

Last night Selena Gomez posted some photos of herself partying with her gal pals in New York City, and she may be single after briefly reuniting with ex-boyfriend Justin Bieber, but she's certainly not down in the dumps about it! Or at least that's what she wants us to think…

After reuniting last month, Bieber and Gomez had yet another falling out, and after Gomez Instagrammed a screenshot of a text message that read, "I just wanna give you a hug and remind you how special you are," Bieber then started making it very clear that he was back with bootilicious model Yovanna Ventura, posting photos of the two and taking her out in his leopard-print Audi R8 yesterday.

So how has she been handling this? The 21-year-old pop star has been spending a lot of quality time with her friends, but apparently some of those close to the starlet are concerned that she's partying a bit too much in the wake of her latest split from the Biebs.

A source told Radar Online:
    "Selena was definitely feeling no pain over the weekend at 4th of July festivities in Malibu. There were numerous trips to the bathroom with and Selena would emerge several minutes later, giggling, and holding her nose. Selena is hanging out with a very bad crew right now. These are new friends Selena has recently made since being released from rehab. These definitely wouldn’t be approved for any person attempting to lead a sober life.”

Perhaps in a response to Bieber flaunting his fling with Ventura in her face, Selena has also been posting messages on Instagram which clearly reference her complicated love life. Yesterday she posted a quote from an interview with Zoe Saldana which read, "The moment you compare [to another woman], it weakens you, and I'm not here for that. Once you know that reality [and] claim your space, your life becomes easier," and after that she uploaded another saying which said, "Sometimes we expect more from others because we'd be willing to do that much for them."

Speaking of the other woman, we looked back on Yovanna's Instagram to see if she had posted more photos of the two together, and she certainly has, along with all sorts of selfies of her face and prominent posterior … check out more photos in the gallery below!