Credit: Photo: Tyler Jacob Moore and Emmy Rossum in Shameless Season 3, Episode 8.

Hopefully this won't make things awkward on the Shameless set.

Showtime series co-stars Emmy Rossum (Fiona Gallagher) and Tyler Jacob Moore (Tony Markovich) have reportedly split up after two years of dating.

According to the New York Post's Page Six, Emmy was recently in the Hamptons and was overheard telling friends she was "single again." A source close to the couple also confirmed the break up to Us Weekly.

Emmy, 26, was previously married to music executive Justin Siegel and dated Counting Crows frontman Adam Duritz.

Shameless ended Season 3 in April; Season 4 will premiere in 2014.

Sources: Page Six, Us Weekly