I am sad because of my tragic backstory.

Thank Celestia you're here. I'm so tired of being shipped with Spike, you have no idea.

I think I love you.

These balloons symbolize sadness. After we release them, these postcards which symbolize happiness will come back to us.
(THEY DO.)

When will my [strike]happiness[/strike] postcard arrive?

Soon.

Stop being sad.

Good idea.
(He DOES.)