Hephaestus
Hephaestus married Aphrodite. When Aphrodite emerged from the sea (created by the sperm of the severed member of Uranus,) Zeus feared that the gods would battle over her hand in marriage, so Zeus arranged that Aphrodite would marry Hephaestus if he let his mother out of the golden throne.  Hephaestus gave Aphrodite his best creations and even gave her a magic girdle that made her irresistible to men.  However, Aphrodite did not love him as she was married against her will and she didn't like Hephaestus' looks.  She spent most of her time with Ares.