"Why is he so cute tho," Rose captioned the precious clip.
Chmerkovskiy posted the same video, writing, "Jumbotron vibes with my boo."
"They were really cute," an onlooker tells ET of their courtside date. "They look like they have a lot of fun together!”
The pair locked lips on Instagram earlier this month, and Rose confirmed their long-rumored relationship
on her podcast.
"It's amazing. It's so good," she said on Loveline
. "It's been four months now and it's awesome. I love his family and everyone's so great. He's great."