Kowalski and Eva is the main romantic relationship in the film Penguins of Madagascar.
Kowalski on Eva: Edit
Eva is the North Wind equivalence of the Penguins Kowalski. Kowalski had a crush on her the moment he met her after she saved their lives. He tries hitting on her every time. One time, he tells her that they should kiss, but Eva just looks at him coldly.
Eva on Kowalski: Edit
At first, Eva doesn't return affections towards Kowalski. However, it is possible she had a crush on him the same time he did. She kisses him on the beak lips, thus she indicated she liked him back