Don’t you just love that one friend who always steals your spotlight with his/her own personal drama? Well, that was Selena Gomez at Taylor Swift’s birthday party on Dec. 13.

The singer reportedly got emotional over on-and-off again boyfriend Justin Bieber while other guests like Beyoncé, Jay Z and Justin Timberlake partied their butts off. Yeah, there’s something wrong with that picture.

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Selena and Justin at a basketball game in April 2012.

“She shouted, ‘No one understands me! My boyfriend doesn’t even understand me,'” an insider tells Us Weekly of the actress’ outburst, which elicited blank stares from bystanders like Sam Smith.

Honestly, we can’t keep up with these two. Their relationship status is as hard to keep track of as Justin’s changing hair color!

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But despite that drama fest in the corner, the party, which took place on the roof of Taylor’s Tribeca apartment, appeared to be a hit, with the b-day girl sharing an insanely awesome pic at the end of the night.

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“So this is being 25…. #WHAT #bestbirthdayEVER,” she captioned the snapshot. Ugh, we’re so jealous!