Diego-Dawn Relationship

Rocko, Portia, Sadie!
Diego gives Dawn hang-gliding lessons.

Fanfics, you can do better than this!
Dawn and Diego (along with Gwen (MB), Trent, Isabella and Duncan) are recycling for a recycling group.

Gas
Dawn blushes at Diego, making her feel like she's in love with him.

Goth vs. Goth
They can be seen sitting next to each other at Gwen and Vanessa's fight.