The Modern Family star has been linked to the Snow White and the Huntsman actress recently, but he has laughed them off, claiming Halle Berry - who is engaged to French hunk Olivier Martinez - is particularly upset by them.
He told E! News: "She was so cold to me this morning when she saw these rumours. It was just quiet - knife and fork on the plate. Halle and I weren't speaking at all. And I'm like, 'Halle, listen! It's just a rumour. It's not real!' "
Eric Stonestreet - who broke up with his girlfriend of three years Katherine Tokarz earlier this month - was said to be head-over-heels with Charlize Theron, who he met through a mutual friend earlier this year.
A source said: "Charlize and Eric get along incredibly well. They started off as friends but things are blossoming between them. Eric is down to earth and funny and Charlize thinks the world of him. It's early days but they're very fond of each other."