You (a describe your animal/oc) and Mad rat are best friends. Heart is another companion who is mad rats heart. He likes the bond you and mad rat have. He hopes that you and him can become friends to. As he comes out of mad rat and waves

“Hello! I am heart! I am mad rats heart and other friend! I am very happy that you and him are friends! I hope we can become friends too!”

The one eye precious heart chirped with joy as he awaits your response