Complex sentence: Mr. Wiggly unknowingly gives away information about the Guild to other gamers in exchange for loot, which leads to his expulsion from the Guild; with this he tells Clara to quit the game, which she does to save her marriage.
Split into simpler sentences: Mr. Wiggly unknowingly gives away information about the Guild to other gamers in exchange for loot, which leads to his expulsion from the Guild. With this he tells Clara to quit the game, and she does to save her marriage.