interruption.... was it or ....

"I know how busy you are and I'm so sorry to bother you," began my friend. Her request was simple, and I was glad she asked. But afterwards I was pierced by her apology for "bothering" me.

Her comment haunted me. Why did she feel badly about asking for my help? Obviously I must give off the impression I'm too busy to be bothered. As I pondered this idea