This kind of shift is called sculpting a new reality. It goes to a higher truth about what is taking place. Life changes, partners change so that we may grow and see ourselves in new ways. The more light and love we bring to life's experiences, the greater the light and love available for all. So that changing partners is seen as natural, that we have much love to share and experience in many places, is a given.
Life moves on as a flow.
Specific neurochemicals are generated when we think, hear or speak words. It makes sense that when we say words that generate yummy neurochemicals we feel better. Changing our use of language can influence our life profoundly. As it does then our world changes profoundly, experientially and actually. Together even a few committed people can influence the world deeply by using this conscious approach to their language.