A Horse and Zebra's Love

Ever since first meeting her, Pony has loved Zizzy, but he is too shy to ask her out. However, he might have some competition with Billy, the bull who isn't infected, and is very strong and handsome. Luckily, he has Zee and Zuzy and Georgie to help him out! Who will Zizzy choose? Find out now?
Note: Don't point out Zee speaking. This is an alternate universe where Zee can speak.