Complex sentence: As time went on it was soon clear that Ixion would never honor his promise to Deioneus and so in retaliation Deioneus crept into Ixion stables and stole his horses to pay the dept. Ixion was raging but calmly invited his father-in-law over to dinner.
Split into simpler sentences: As time went on it was soon clear that Ixion would never honor his promise to Deioneus. So in retaliation, Deioneus crept into Ixion stables and stole his horses to pay the dept. Ixion was raging but calmly invited his father-in-law over to dinner.