Why does she know? Because over a period of time, she has become familiar with his way of thinking about their limited budget.
हालाँकि उसका पति उसके साथ नहीं है, लेकिन वह जानती है कि अगर वह इतना पैसा खर्च कर देगी, तो उसका पति क्या सोचेगा ।