Elli telling Sangram that when you are busy you don't think but when nothing happens, you start thinking... (I think that's what she means)
Sangram: when you hear something in this house, hear it from one ear and take it out from the other
Elli: she heard something about Sofia yesterday and it's not something that she can take in from one ear from the other...
and she's feeling bad coz this is not the first time she is hearing this story