Complex sentence: She is on good terms with everyone in the series as long as they don't try to harm Irina, she shows alot of jealousy towards Junichiro in Irina's Route and falls in love with him in Ran's Route.
Split into simpler sentences: She is on good terms with everyone in the series as long as they don't try to harm Irina. She shows a lot of jealousy towards Junichiro in Irina's Route and falls in love with him in Ran's Route.