"They were bowling in a group, but they looked particularly cozy and affectionate with each other. They were super flirty," a source dished to RadarOnline.com.
The source continued, "She looked really happy, which is so nice after all the drama she had with Scott on the show."
Although an onlooker noted that it looked like the pair were "on a first date," her rep downplayed the outing.
"She was at Brooklyn Bowl on Saturday with a group of friends that included Billy," her rep told the outlet.
Billy was fired from Today in October 2016 but is set to make his return to TV with a new $3.5 million job on Extra in fall 2019.
Do you think Tinsley and Billy would make a cute couple? Sound off in the comments below!