Complex sentence: His wife purchased a dog for L. T. which in turn, disliked him instantly and sided with the wife, while L. T. purchased a cat for his wife, who immediately took to L.T. instead.
Split into simpler sentences: His wife purchased a dog for L. T. which in turn, disliked him instantly and sided with the wife. Soon, L. T. purchased a cat for his wife, who immediately took to L.T. instead.