Inside were pictures of a happy and successful Dave standing in front of the dealership with a big smile. He used to own the car dealership but lost everything when the economy tanked. Even through all that mess, he and Alexander stayed close friends.
At that moment, it all clicked for Claire. Dave always hanging around the dealership, it was him trying to return to the good old days when he still had money, success, and pride. Claire had, unknowingly, befriended the old owner, now lending her a job as the new manager. Being friendly really pays off sometimes.