A rep for the 'Barry' star confirms the couple's news.
Hader opened up to ET at the season four premiere screening of 'Barry' at Hollywood Forever on Sunday.
The HBO series will wrap up with the upcoming fourth season.
Bilson and Hader split in 2020 after a brief romance.
On Rachel Bilson's ‘Broad Ideas’ podcast, she had a cheeky response when asked about what she misses about her ex, Bill Hader.
Bilson made the tongue-in-cheek revelation on the latest episode of her podcast, 'Broad Ideas with Rachel Bilson.'
Sweeney was recognized for ‘Euphoria’ and ‘White Lotus,’ while Garner nabbed noms for 'Inventing Anna' and 'Ozark.'
A source told ET back in January that they had been 'dating for a while.'
The recently actress addressed her 2020 split from the 'Barry' star in rare love life comments on her podcast.
A source recently told ET that the couple is 'in love and very happy in their relationship.'
Bill Hader chats with ET at the season 3 premiere of ‘Barry,’ debuting April 24 on HBO.
ET learned about the couple's relationship in January.
ET first learned that the co-stars turned couple were dating back in January.
The new season returns in April.