T-Rex: I have friends because I like them, and I like them because they're fun and GUESS WHAT, I LOVE HAVING FUN.

T-Rex: WHY WOULD YOU BE FRIENDS IF IT'S NOT TO HAVE FUN ALL THE TIME??

Narrator: LATER:
Dromiceiomimus: T-Rex, I've been feeling down lately and I was hoping talking about it with a friend would help!
T-Rex: Oh geez, yes! Of course, I would be happy to help!
T-Rex: Let's talk this out, Drotimes!!

Narrator: LATER:
Utahraptor: T-Rex, can you help me move AGAIN?
T-Rex: Sure I'd be happy to!

Narrator: LATER:
Utahraptor: T-Rex, thanks for helping me move!
T-Rex: No problem! Now is it finally time to have fun? Now can I get what I want out of this friendship?
Utahraptor: Nope! I gotta set all this stuff up. But thanks!

Narrator: LATER:
T-Rex: Whatever! Turns out I've become emotionally invested in other people's happiness, so their happiness increases my own!!
T-Rex: SUCK ON THAT, PAST ME