Oh my god Hephaetus might be my favourite Greek god in existence.
Okay so basically when Hephaetus was born to Zeus and Hera, he was really weak with a broken foot so Hera was disgusted and threw him off Olympus and he fell into the sea. The sea creatures took him to an island where he lived peacefully, forging jewellery and robots and other cool stuff and he even worked with Cyclopses and shit.
And then Hera was all like "crap he's actually really cool" so she invited him back to Olympus and he was like "nope i'm quite fine down here" and sent Hera a gold throne as a thank you gift for the invitation. What a polite motherfucker right? buT NO BECAUSE WHEN HERA SITS DOWN IN THE THRONE, GOLD CHAINS SPRING OUT AND WRAP AROUND HER. And Hephaetus was just cackling cause he was all FINALLY REVENGE. And then Zeus sent Ares to collect him by force to free Hera but Hephaetus was like NOPE and avoided Ares and ran him away so the only way they could bring Hephaetus was by sending Dionysus (the god of wine) and getting him drunk. And after he freed Hera, she still felt guilty about the whole throwing him off a mountain thing so she offered the same invitation again and he said no because it was too crowded.
He's also married to Aphrodite but she thinks he's ugly so she's a complete bitch to him and is cheating on him with Ares. But Hephaetus still makes her jewellery and stuff, including a magic girdle that made her irresistible to men. He's also responsible for many olympian weapons/items like the shield of Achilles, the spear of Athena, and Hercules' breastplate.