They've been dating since February.

And Maisie Williams was spotted with boyfriend Reuben Selby on Monday, enjoying some couple time at the Tennis Channel’s Suite at the US Open in New York.

The 22-year-old Game Of Thrones actress turned heads in a red white and blue colored dress, in a nod to the traditional colors worn during the US Labor Day holiday.

Love all: Maisie Williams was spotted with boyfriend Reuben Selby on Monday, enjoying some couple time at the Tennis Channel’s Suite at the US Open in New York

The patriotic color scheme was all the more appropriate given it was worn at the United States' national grand slam, which is held annually in Flushing Meadows, New York.

Maisie paired the distinctive dress with a pair of chunky black boots.

Her tresses were dyed pink and worn with bangs for one of the biggest events on the tennis calendar.

Patriotic: The 22-year-old Game Of Thrones actress turned heads in a red white and blue colored dress, in a nod to the traditional colors worn during the US Labor Day holiday

Well-heeled: Maisie paired the distinctive dress with a pair of chunky black boots

Her 22-year-old English model, developer, and photographer beau kept things smart casual in a black blazer over a white T-shirt.

Williams and her communications director beau first sparked romance rumours in February after they were spotted strolling around New York City holding hands, following her split from long-term boyfriend, 35-year-old Ollie Jackson.

She seemed to make the relationship official after he accompanied her to Joe Jonas and Sophie Turner's French wedding back in June, posting a photo of them together on Instagram.