Justin Bieber A No Show At Selena Gomez Birthday Party: Gomez 'A Complete Mess' After Seeing His Latest Instagram PHOTOS (RUMORED)

If Justin Beiber wanted to make Selena Gomez jealous with his latest Instagram photos, it appears to be working, according to Hollywood Life.

Sources say Selena is a "Selena is a complete mess. Justin was the love her life, and she can't face the fact that their relationship may be over for good."

Selena and Justin's last photographed date was on June 20, and since then he's been posting pics with models Yovanna Ventura and Chantel Jeffries.

Meanwhile, it seems Selena has received another devastating blow - Hollywood Life sources say ex-flame Justin will not be celebrating her 22nd birthday with her on Tuesday.

Justin, 20, surprised Selena last year on her 21st birthday at the last minute, but this year is a definite no-go. "He will be going paintballing on Tuesday and Selena is not only not going, but she wasn't even invited. They are not doing well right now," a source close to Justin tells the website.

Justin hung with pal Chris Brown and girlfriend Karrueche Tran at at Hollywood hotspot Bootsy Bellows earlier in the week. According to the same source, girls were practically throwing themselves at Justin, but he wasn't at all interested: "The hottest girls I have ever witnessed were at Bootsy Bellows drooling over everything Justin did at the club, whether it was dancing or having his shirt off - they just wanted to be in his area, but he blew off all of them because he wanted to be with Chris Brown the whole night and hang out with him. He was there to party and worry about getting laid later."

Hmmm.... no party and blowing off the hottest women Hollywood has to offer? Could this mean Justin is indeed getting serious with Yovanna?

Time will tell.. as of yesterday he posted a pic of model Ashley Moore in her Calvins.