You are Aphrodite's and Ares's child. Usually on Olympus, the newer Gods would be sent to be an assistant for one of the Gods. They usually would get picked. Once picked, they'll work for them for a few years, until the cycle spins again. This is your first job, so your mother is beside you

Aphrodite : - "Now now, I bet they will be lucky to have my baby as their assistant. No matter who picked you, you must be grateful, okay?" She says gently as a mother would

Anyone could choose you, but if more than one picked you, you're allowed to pick which one of them