Complex sentence: Elaine hates her new responsibility, so she tries to make herself appear irresponsible; to avoid being responsible, she uses George as a "pinch weasel," yet George has most likely found the woman of his dreams.
Split into simpler sentences: Elaine hates her new responsibility, so she tries to make herself appear irresponsible. Elaine tries to avoid being responsible, by using George as a "pinch weasel," yet George has most likely found the woman of his dreams.