Complex sentence: It took him a while to warm up to Joe Fontana, whose style was very different from Lennie's; however, Ed was able to deflate some tension that formed between Fontana and Van Buren ("L&O ":"Paradigm").
Split into simpler sentences: It took him a while to warm up to Joe Fontana, whose style was very different from Lennie's. However, Ed was able to deflate some tension that formed between Fontana and Van Buren ("L&O ":"Paradigm").