I think. I tried searching the forums to see if anyone else had my thoughts but this is what I am thinking.
We see that tulasi and bhuvana clashed in teh hospital and today we saw that , she had a fight with this lady , who's husband she has stolen.
We all know that Tulasi's mom ran away so its possible that that man ist he one whom she ran away with and that manager woman today is his original wife
and bhuvana is the one who left Tulasi's father.
So this is what happening,
that eventually tulasi will be kicked out of the house for what ever reaso n and BHuvana will support her .. !
or atleast try to support her