Um well...they don't get along at all. I wish they could at least be friends.
If they ever did get together I would be sad but if Hephaestus finally found the perfect lover I'd support him and be happy for him.
I love Ares but I don't want to be with him if he doesn't love me back so if he ever changes his mind I'll understand.
BUT IT WILL MAKE A BEAUTIFUL BROMANCE
I SHIP AS FRIENDS