Arti and Sana are CLOSEST to him. So it’s COMMON SENSE he should have save his CLOSEST in times of need. His saving Paras MAKES NO SENSE and is an epic betrayal. Specially when he saw this weekend Sana could have left and how scared she is from the thought of exit.
It is like Asim saving Vishal or Rashmi over Himanshi. Or Paras saving Shukla over Mahira. We all have our obvious priorities and deviating from that are bound to raise questions on our motive and character!