When anandhi got influenced by DS and decided to quit the education, jaggiyya fought for her.
When the 5 year leap happened he requested anandhi to be modern, but anandhi only focused about her in laws feelings.
When he was leaving to college, he suggested anandhi to join him.
Well, when jaggiyya wanted anandhi to be the way he wanted, she preferred to impress DS over jaggiyya and behaved accordingly. So jaggiyya was shown falling for some woman.
Since, anandhi decided to impress DS, she was stuck with her.
Jaggiyya had to lead horrible life with this other woman. This would have never happened if Anand had listened to him in the first place.