Actually its nanhi spiderman bond its always more special then any other bond that mohan shares in this show.I always felt mohan was more of himself when he spends time with chavanni ,he never had to prove himself ,he never had to impress her ,she loved and accepted him with all the flaws,the imperfect mohan .
Thats why even yesterday he felt the need to give explainations to her ,he said if no one else understands me its ok i know my chavanni will always understand me .
Nanhi also far more gets affected by him ,she just cant hide her emotions thats how she prefers to avoid office.Her heart ,her love over takes hatred when he is infront of her.Thats the main the reason for avoiding her work.Her main reason for anger mohan leaving her without even telling,wasnt their relation much before mohan megha marriage .it took years for her to get over her spiderman affection and now suddenly he s come ringing the bel.
As a daughter ,sister she feels the need to suport them ,but deep down she stills cares for her spiderman.
Mohan and nanhi s relation was such that nanhi always suported mohan while mohan was nanhi ka spiderman.
I dont why people say megha s character is butchered ,well from the beginning he mistook mohan ,he always had to prove her his love ,his capabilities ,it was always a challenge for mohan same goes to addu ,who always would get irritated by mohan ns antics.Its was nanhi who loved mohan for what he was.