As time goes by, purvi will learn to love onir. Love should be patient and kind and Onir gives that kind of love to purvi all the time. Their love for each other will be deeper as "it will grow slowly but surely" and not just any kind of puppy love. What Onir and Purvi have is more than what meets the eye! And soon more than what arjun and purvi felt for each other... Onir and Purvi will grow old together just like her grandma sulochana and her husband.
Just my POV... No offense to anyone.