Complex sentence: The song is said to have been inspired when Hendrix and his then girlfriend, Kathy Etchingham, had an argument over her cooking; after she stormed out of their apartment, Hendrix wrote "The Wind Cries Mary", as Mary was Etchingham's middle name.
Split into simpler sentences: The song is said to have been inspired when Hendrix's girlfriend at the time, Kathy Etchingham, and himself had an argument over her cooking. When she stormed out of their apartment, Hendrix wrote "The Wind Cries Mary", as Mary was Etchingham's middle name.