did hephaestos know that aphrodite was having an affair with ares?

[basketballplayer11]

okay please help me.I need to know for school if Hephaestos,greek god, knew that Aphrodite,greek goddess, was having an affair with Ares,greek god, and if so how did he react.Please help me because I've tried to find this out and have had no luck so please please help me.
thank you,
Maddie

p.s. any other information about them would be helpful too.