Overstreet, who did not pose for photographs on the red carpet at the event, was seen leaving the venue first before being closely followed by Watson.
The 27-year-old actress wasn't exactly holding hands with her 29-year-old beau, but it is interesting the pair chose to leave at exactly the same time.
Especially when considering that the duo were photographed enjoying an intimate dinner in Los Angeles in mid-February.
Watson has been single since 2017, when it was announced she had split from boyfriend of two years William "Mack" Knight. Overstreet has previously dated fellow actors including Emma Roberts, Halston Sage and (potentially) Taylor Swift.