I think we should wait and see tomorrow's episode, we all expected Suraj to be angry when he saw Chakor hugging Vivaan but he behaved maturely by reaching out to Chakor.
I don't think we're heading to MU and separation, this happens when the villain has been in the show for some time and they need to shift focus away from him/her but the mystery lady will enter soon and they'll want the focus to be on her.
So far Suraj is giving Chakor a chance to prove that Imli is alive and Chakor can understand Suraj's POV, so the problems between them are under control.
I think it's more likely that Vivaan will fall for Chakor again and try to get rid of Suraj, so obsessive lover is more likely than separation.
I'm sure Sukor are here to stay, shows don't change jodis without killing off one of them and if they intend to do that they would've shown Suraj mistreating Chakor, but so far Suraj has handled the situation very well.