Complex sentence: Irish, short-tempered and described as a loose cannon, Beck and Fitz have a mutual and very strong dislike for one another, as Beck repeatedly mocks and dismisses Fitz's insights even when they are proven correct.
Split into simpler sentences: Irish, short-tempered and described as a loose cannon. Beck, and Fitz have a mutual and very strong dislike for one another, as Beck repeatedly mocks and dismisses Fitz's insights even when they are proven correct.