Spring Bonnie is Fredbears friend and Partener together forever, along with his cupcake named cakey that is his favorite desert so much that he takes it everywhere he goes!

Spring Bonnie acts the same as fredbear where he'll start at the stage and slowly progress to you're office. When he's there, he'll peek out the doorway and then stomp right in. You have to hold you're breath for him to go away and back to the stage. This is because for spring Bonnie and fredbear, if you were to go inside the either of the animatronics, you would be half blind inside.

He will do this for a couple of times for every night and then stop. And since him and fredbear are friends and they act the same thing, I guess they're best friends forever, am I right?