Pin and Teardrop are usually shown to have a good friendship. Pin occasionally talks to Teardrop despite the latter being mute. Pin considers Teardrop her best friend in Battle For Dream Island Again, though its unknown if the feelings mutual. There are a few bumps in their relationship in BFDIA and BFB however.
Episodes suggesting a friendship
In "Take the Plunge: Part 1", Teardrop grabbed on to Pin's hand when she and Leafy knocked her off. Later, Pin tells Teardrop to swing and they manage to get back on top.
In "Sweet Tooth", Pin tells Teardrop that she'll at least get 10 points from Flower with her Flower cake.
In "Return of the Hang Glider", Pin tells Teardrop to help her find who has Dream Island, Teardrop nods.
In "Zeeky Boogy Doog", Pin said Teardrop didn't need immunity because everyone loves her.
In "Get to the Top in 500 Steps", in the stinger ending Pin, Needle, and Teardrop sit together at night. Both show concern when Needle changes.
In "Barriers and Pitfalls", when Pin was about to jump over the wall, Teardrop flips her over, making her stuck.
In "Bridge Crossing", the two are blown into each other on the side of a cliff, Pin just says "What?" when she sees her.
Episodes suggesting a conflict
In "Get Digging", numerous clones of Teardrop laughed at the W.O.A.H. Bunch as they walked to the Cake at Stake area. Teardrop clearly didn't want to switch to W.O.A.H. Bunch, but because she's unable to speak, she ends up getting dragged off by Coiny and Pin. In response for Teardrop getting in between Pin and Coiny's high five, Pin says that Teardrop isn't a real contestant.
In "What Do You Think of Roleplay?", Pin, disguised as Taco, tries to pin Teardrop as the impostor on . Teardrop immediately points Taco out as the impostor, making her team safe. If you remove Taco from the scene before Book spazzes out, Teardrop can be seen glaring to Pin.
In "X Marks the Spot", Pin swipes X out of Teardrop's arms and refuses to let her and the rest of her team take X as their show's co-host.