Why did Hephaestus divorced Aphrodite?

Aphrodite (goddess of love) was in love with someone else (Ares (God of War)) plus Hephaestus (lord of the forges) wasn't all that good looking, and for Aphrodite, that would be a disaster if she stayed with him for a millenia (just saying). I mean even Hephaestus' own mother (Hera) had her problems with him because he was so ugly, and she dropped him off a cliff of Olympus.

READ THE "PERCY JACKSON AND THE OLYMPIANS" SERIES, PEOPLE!! (All 5 Books)

(1. The Lightning Thief, 2. The Sea of Monsters, 3. The Titan's Curse, 4. Battle of the Labyrinth, 5. The Last Olympian) AND THE HEROES OF OLYMPUS!! (1. The Lost Hero, 2. The Son Of Neptune, 3. The Mark Of Athena, 4. The House Of Hades)