Complex sentence: She continues to care for Maggie's wellbeing at the Hilltop Colony but seeks vengeance on Negan and during a botched assassination attempt with Rosita, Sasha is captured by the Saviors.
Split into simpler sentences: She continues to care for Maggie's well-being at the Hilltop Colony but seeks vengeance on Negan. During a botched assassination attempt with Rosita, Sasha is captured by the Saviors.