Not in the same place, but at the same time. Grace captures Adam while he is heading home and Elena does the same for Ciara. Because if Ciara or Adam go home and find the other they will free them right then and there.

That could be the best time actually! After Elena send Ciara back to the Clan, she runs into her sister and has a reunion of sorts xD

Because it is going to happen after he leaves her. He is going to kiss her and then disappear basically. So when they are kidnapped Ciara might still be hurt and she might just be finding out that Adam killed a member of her clan.

So no wedding then, just the looming idea ^.^