Complex sentence: Bitter and angrier than in her former appearances, she still blames Lois Lane for General Sam's death during the war against Imperiex, as essentially she thinks Lois had broken his heart by putting her love for Superman before her duties as a daughter.
Split into simpler sentences: Bitter and angrier than in her former appearances, she still blames Lois for General Sam Lane's death during the war against Imperiex. Essentially, she thinks Lois broke his heart by putting her love for Superman before her duties as a daughter.