Among expresses a relationship when more than two persons or things are involved: Distrust spread among even his strongest supporters. Between is used when only two persons or things are involved: between you and me; to decide between tea and coffee. Between also continues to be used, as it has been throughout its entire history, to express a relationship of persons or things considered individually, no matter how many: Tossing up coins between three people always takes a little working out. Between holding public office, teaching, and writing, she has little free time.

Did you mean betweenwhiles?