Sofia Vergara and her breasts are single once again.

The Modern Family beauty has split with her boyfriend of two years, Nick Loeb, according to The New York Post, which cites sources who say the couple argued all weekend before pulling the plug on its relationship.

Vergara proceeded to attend Monday's Met Ball in New York City alone.

“Sofia was confiding in friends at the ball that she and Nick have split," an insider tells the newspaper. "They have been fighting a lot recently and have been on the brink of splitting many times. It is not yet clear if they are over for good, but they are done as a couple for now.”

Loeb is the grandson of one of the Lehman brothers and served as a partner in his family’s firm until it went under as part of the financial crisis.

He met the actress at a Golden Globes party in 2010.

[Photo: WENN.com]