Here the chronology seems inverted as regards to the proper use of the past perfect and the preterite to order two different events that both occurred in the past:
- He had not been[past perfect] happy with Sally
since she mentioned[preterite] the lost purse.
Chronologically, the mention of the lost purse comes first. Do you agree that the preterite since she mentioned is correct, though? I do not need to write since she had mentioned the lost purse, do I?
How can the past perfect ever come after the preterite? Isn’t the entire reason for using these two contrasting constructions together so that the past perfect places one event further in the past than the preterite places other event?
How come you can invert the required sequence of tenses like this without breaking the time-ordering and confusing people?