hey ,
bhauji is avdesh's brother's widow wife.. her husband died right after their wedding, she stayed in her sasural and brought up avdesh, she made him strong enough and now all lallanpur is scared of him due to bhauji's efforts.
she got really upset by avdesh's wedding because he didnt tell her anything about his wedding before or about his love(arpita)
though we all were very confused about bhauji's reaction but this is conclusion of all.
hope it helped!