No, she had no male counterpart.
Poseidon was Medusa's boyfriend and they were hanging out in Athena's temple. Then Athena turned Medusa into Medusa.
Medusa had no children.
A counterpart is an opposite number, or an equivalent. She was his counterpart on the opposing team.
No, Rhea was not Medusa. Rhea was a Titan. Medusa was a Gorgon.
Her Roman counterpart would be Juno.
Medusa.
Medusa.
Medusa did not have one.
No, Medusa is not a constellation.
Medusa
Medusa's
Rhea is a Greek goddess and so has no Greek counterpart. Ops/Opis was the Roman counterpart.