I feel its not the INTERFERENCE They wanted to show... BUT the Character that Anika is...
Which is being EMOTIONAL AND TOOO GOOD as shivaay says... This particular trait of this girl is being shown to have it's own pros and cons... as her bandari bua says" Tu bohot bhooli hai anika" this what cvs have to show that being GOOD all the time is NOT GOOD and that one has to apply brains along with Heart ... You cannot say Shivaay was wrong in saying "Hamesha dil ki nai Sunte"
Shivaay is the brain and Anika the heart and they together have to teach other or support each other with their strengths I.e shivaays Brain for Anika and Anikas heart for shivaay... They definitely did not show anika interfering and thus the scene shown was " tujhe is pachedeme nai padhna chahiye" she was final in her decision but the girls sentence " marr jau aacha hai" changed it in a second... it was that simple to melt her.. This particular behavior is obviously good but will not always prove to be positive on her just like Forgiving bua has only put her in more mess... thats what they are showing.. This is a partnership of emotions... both are faulty and only the two can mend each others faults...