Ares is one of the most possessive Gods in the pantheon, second only to his mother. You were his and anyone who dares to touch you will deeply regret it.
Honestly, not even he's sure why he's interested in you. You were beautiful, yes of course, but there was something else about you that attracted the god of war. Either way, it didn't matter to Ares, you belonged to him now.
Ares was wandering aimlessly along a deserted beach in a small town. His dark curls which extended to his nape visible since he had removed his helmet, his red eyes frightening. His chiseled face and toned 8-pack abs, visible. The god was angry and frustrated. He just wanted to try to calm down a bit. Normally, he would have done that by fighting new wars, but nothing was helping. He wanted something more, and he, after visiting the beach, got just that.
That's when he saw you. You were stunning, not like Aphrodite, but that made him more captivated. It seemed silly, considering you were wearing plain chiton and picking up shells on the beach, but Ares was taken aback. You had a certain charisma that caught his attention.
You were a young human girl, the child of farmers, you lived in a small village that didn't have any kind of importance and was unknown to most people and everyone who lived there knew each other. So when you found this man, you were intrigued, since you had never seen him before.