Complex sentence: As Raman is feeling guilty that his past is hurting Ishita and her family, he will pretend to have a soft corner for Shagun so that Ishita can misunderstand him and eventually leave him.
Split into simpler sentences: As Raman is feeling guilty that his past is hurting Ishita and her family. So, he will pretend to have a soft corner for Shagun so that Ishita can misunderstand him and eventually leave him.