Episodes Suggesting a Friendship
In Aquatic Conflict, Bow offered to be friends with Marshmallow when she was alone. Due to Bow not understanding what an alliance is (calling it an appliance), the two become friends, and continue to be so for the rest of the competition.
In Inanimate Smackdown, Bow and Marshmallow both vote for Apple, and later Bow smashes Apple into the stage. In a deleted line, it is revealed that Bow would have yelled at Apple for eliminating Marshmallow.
In Journey Through Memory Lane (Part 2), as Evil Bow is about to attack Marshmallow, she hands her a chair, which almost instantly cures Bow back to normal.
In a Kick in the Right Direction, Marshmallow feels guilt over the death of Bow and feels responsible, she goes to MePhone and requests for Bow to return, she is sad when Bow does not return.
In Let 'Er R.I.P., Marshmallow is happy to see Bow, and Bow did not care that Marshmallow caused her death as she gained a tail, Bow offers to win the challenge for Marshmallow. When Bow is sucked up by Soap's vaccum, Marshmallow calls Bow her friend and calls Soap a monster. Soap sucks her up, and claims victory for the Grand Slams
Episodes Suggesting a Conflict
In Journey Through Memory Lane (Part 2), Marshmallow wondered if there was anyone stupid enough to try and take down MePhone5, and picks Bow as her victim, imprisoning her back inside her small box, and turning her insane once again. This inadvertently causes Bow's death, as she jumps to attack MePhone5, but falls down the cliff, and dies after being electrocuted in the water. However, in A Kick In The Right Direction, she shows regret for this.