person A: My sister actually paid my back on time last week
person B: Well_comma_ that's good. Did she borrow money from you?
person A: she always does and never pays it back on time. But this time she did
person B: Perhaps she's turned over a new leaf. It's very good of you to lend her money_comma_ even if she is your sister.
person A: I hope so
person B: It's surprising how people suddenly wake up and realize that perhaps they haven't been acting as perhaps they should have.