I felt terrible for bringing up her hair the second time around , but I did n't know . When she talked about it , she was so upbeat about everything . It was encouraging in a sense , but I could n't help but feel that sense of hidden pain ? I mean , of course , there 's pain .

Give answer the following question using evidence from the above passage: what may not happen if I had not mentioned the hair a second time ?
The painful awkward situation would not have been triggered