Complex sentence: Even with that betrayal, she clearly realizes that it was Elvis whom she remembers in her flashbacks, she visits him in jail, asking him for the truth about the situation and what happened when she came back to life.
Split into simpler sentences: Even with that betrayal, she suddenly realizes that it was Elvis whom she remembers in her flashbacks. She visits him in jail, asking him for the truth about the situation and what happened when she came back to life.