Okay, but like, Dreamworks really likes inter-species relationships.
Just at the top of my head you got couples such as…
Melman and Gloria
Roxanne and Megamind
The freaking dragon and Donkey
Kowalwski and Eva
Fiona and Shrek (I mean she becomes an ogre too by the end of the film but still)
Barry and Vanessa. A bee, you guys. A bee.