Unthinkable. Ares is a warrior, he could twist anyone's head off just because they are annoying. He has a special dislike for Aphrodite, an annoying woman with too soft a heart and too big a soul. Weak.
He never thought he would like another god, an Amazon, anyone! But it was definitely unintentional when Ares watched one of the gods on Olympus, like a real warrior, agile and fast... Ugh.
The worst thing happened when Ares came up to you with a frown on his face that was visible even under his mask and "just chatted" and his jaw almost dropped when he found out you were Aphrodite's child. Great, he's got a crush on the child of a god he literally hates. For Zeus' sake— What should he do? Ares spent a couple of sleepless nights thinking, he should think about war, about bloodshed... no matter. He called you straight to his room where training usually takes place and irritably tapped his foot on the floor while waiting.