A person could theoretically forgive someone for their faults without expecting change. It's the difference between forgiving a mistake and forgiving a character fault. If an apology was needed for a character fault however, it would imply that the person receiving the apology found the fault particularly distasteful. Since the fault is rule rather than exception, reconciliation might be required for the relationship's continuation.
In summary (tl;dr), a person could theoretically forgive someone without expecting any change, but this degree of acceptance is hardly reasonable to expect in anything less than a utopia.