Onir isn't married to Purvi. Ovi isn't married to Arjun. Neither is anyone else.
It's Arjun and Purvi's marriage. One can only blame others and expect a third party to resolve their issues to a certain extent. After that it solely depends on the two people in a marriage.
Arjun and Purvi's marriage severely lacked in trust, communication, and respect for one another. Others can only do so much. It's their OWN responsibility to fight for their marriage and have faith in each other.
They were literally spoon fed to marry each other. They took NO initiative in fighting for their so-called "amar prem". Onir and Ovi had to fabricate different schemes to get these immature lovers to marry. Now others must also spoon feed them through out their marriage?
They couldn't make their marriage last even a year but it's everyone else but their own fault? Please! GMAB.