I can only think of 2 - Minthe and Leuce. It's hard to say whether or not he had many affairs as he is regarded as an infertile god, therefore incapable of fathering children.
Yes, in Greek mythology, Hades had a well-known affair with Persephone, who eventually became his wife. Persephone was the daughter of Demeter, the goddess of agriculture.
No, he had several affairs.
Hades and Pluto are the same god. Though they are the same god Pluto is seen as more warlike, honorable, and interested in the affairs of mortals. Hades is calmer and rarely interferes even in demigod affairs.
Personally, I would consider Hades to be anti-social. He tend to stay down in the Underworld (sometimes also called Hades). Normally, Hades does not visit Mount Olympus or any of the other gods. Even when he wanted a wife, Hades had to kidnap her. Also, he is probably the only god or goddess (barring Artemis and Athena, since they promised to stay virgin) without a multitude of offspring or affairs.
Who is Hades <.<
Hades does not venture very often from the Underworld where he rules, he had kidnapped Persephone as his wife but was not often interested in the affairs of mortals or events upon earth.
Hades nor his wife Persephone have any kids. lol
Hades only had one wife Persephone but he had two affairs with nymphs when Persephone learned of this she turned one nymph into a mint plant and the other into a popular tree.
Hades does have a wife, her name is Persephone.
Hades' lover and wife is Persephone.
Hades does not have any children.
Hades' only spouse is Persephone.
Hades has two brothers, Poseidon and Zeus.