Ahem left Kokila because she supported Gopi in whatever she did and because of that Gopi had to go to jail.. Because when Gopi was about to kill Radha, Ahem was shouting at Gopi not to kill her.. but Kokila did not stop as much... so he must be angry for that and left with his two girls...😕..
Yes, that is another possibility. In a way, his annoyance is also right. He did not want Gopi to indulge in anyone's matters and wanted her to focus on their relationships and of course their 2 girls.
I had mentioned that Kokila should have brought Rashi to Gopi before she could kill Radha. If she had done that, Gopi would have dropped the Trishul. When Rashi was safe in Koki's hands, they should have made an effort to stop Gopi from killing Radha & handed her(Radha) to the police.