Patrick and Spongebob said the most touching thing, that sentence

One day, Daxing was sent to find Spongebob.

Patrick: Spongebob, shall we catch jellyfish today?

Spongebob: Patrick, I can't.

Patrick: Why?

Spongebob: Because I'm going to school.

Patrick: I don't know what I would do without you.

Spongebob: So when I'm away.

What are you doing?

Patrick: When you come back.

I just found out that my life is only blank except the time with you.