Sentence:  And most of all it is not having the only man you could love , whether he drives a bread truck or delivers the mail or checks the berry crates down at the sheds , or owns seventeen oil wells and six diamond mines , for if you are anybody what he is or <WSD>does</WSD> makes no difference if he is the one . 
Meaning of the word marked with <WSD> tags:  carry out or practice; as of jobs and professions