I know it seems like a lame excuse, but the greatest proof of love that Parin can give Mita is to leave her way free so she can find happiness with someone else. Parin is crazy with love for her, even though he is jealous he really decided to stop harassing her all the time, and stopped wanting to force her to love him too, even more that he is the real wrong in the story, and it’s normal that she wasn’t prepared to open up to him completely, she suffered for three years and Parin didn’t suffer anything compared to Mita, I know he will suffer a lot more leaving her, only he saw her belly, until episode 9 i'm sure he'll find out about the kids.
Parin knows that Gun would treat her well and make her happy, I'm sure Mita knows too, but she won't love Gun back, probably Parin will fight hard to stay close to her and the kids, he already loves his kids, I think that Gun is going to invest since Parin has left the path clear but he will certainly realize that Mita will not let their relationship go beyond friendship, I knew that Parin did not want Gun's project and that he would leave everything to Mita. He'll probably leave his father's company aside too, it's time for Parin to really show with attitudes that Mita is everything to him, that Mita is the woman he loves more than anything in this world, including I think Parin loves her Mita more than the mother herself.