ACE H Kids Organization

I have a bit of a problem on my hands.  I have worked for a company for six years as the office manager.  The position is very challenging at times.  The president of the company is who I report to.  His wife is the bookkeeper and feels that all decisions should go through her.  My boss has asked me to order new business conference furniture for the conference room.  He has given me a budget and expects me to stay within it.  I have selected what I think is perfect.  My boss thinks its perfect.  Our bookkeeper hates it and wants me to start over.  This has caused a great deal of conflict in the office.  I am going to have to speak with my boss privately about this situation.