Love in the Wild by Rachel Hope

When zoo animals have more of a love life than you do, there’s a problem.
Garrett is in charge of the zoo while his boss is on sabbatical. They have more bills than income, and he’s barely keeping things afloat, despite working more hours than should be possible in a day. Now, he’s got to babysit a reporter, and he can only hope it will bring the zoo enough attention to keep them going just a little longer.
Issy is still smarting from being dumped (on New Year’s Day! Who does that?) when she’s given her Valentine’s Day writing assignment from the paper: document the love lives of the animals at the local zoo.
Working together to save the zoo, Issy and Garrett are forced to realize that birds do it, bees do it, and love is something that just happens in the wild.