Bell was being held by Cloudy when Fanny blew them away when they failed to join the game with 4 votes.
Status: Minor Friends
In No More Snow!, after Coiny and Bomby helping Pin to get out. Cloudy and Lightning appeared up to the tree and struck the tree. Coiny and Bomby were runing and screaming.
Status: Minor Enemies
Cloudy and Lightning have never showed direct interaction, but Lightning is summoned when Cloudy is angry, one instance strucking down a tree that collapsed on Pin.
Status: Best Friends
In No More Snow!, Lightning, summoned by Cloudy, struck a pine tree when Pin was stuck in the glue. Pin was presumably killed when the tree crushed her.