Well Dev may not completely abandon Suhana or willingly send her away its only that Ishwari who would do this shit. Dev can only be blamed for believing Rohit over trusting his own child and not taking stand for her and that happens with a lot of kids so Dev is no exception as a father. This season is about then as parents first and then as a couple.
Arey.... I didn't say he would do that willingly😆 He might not want to do that, but once his Mommy dearest starts her emotional blackmailing with his bachpan maa beta rishta etc etc sob stories, he will be "helpless" & ultimately do what his Mommy wants him to do 😆 His Mummy is expert at manipulating him & he is not so expert at resisting them. That's the story of his life in a nutshell😆