Complex sentence: Mamuwalde also meets Justin's girlfriend, Lisa Fortier, at the party and he discovers that Lisa is naturally adept at voodoo, so Mamuwalde later tells Lisa the truth about himself, asking her for help to cure him of his vampire curse.
Split into simpler sentences: Mamuwalde also meets Justin's girlfriend, Lisa Fortier, at the party and he discovers that Lisa is naturally adept at voodoo. He later asks her for help to cure him of his vampire curse.