Marble and Pearly can be shipped as "Pearble."
Episodes suggesting a friendship
A Shocking Addition: Boombox chooses Marble and Pearly on her team. In the challenge, Marble and Pearly are partnered. As an error, Pearly is supposed to guide Marble, but later she is being guided by him (when it should be vice versa).
Branching Out: At the end, Marble is seen with heart eyes looking at Pearly when she says that Team Tune had a good winning streak.
In Deeper Waters: Marble makes an alliance with Pearly.