You have to have the ability to move forward in life, so above all, provide yourself time, and you might want to deal with the ending of the relationship nearly like a death. It actually does not matter whether you wanted the relationship to end or not. When you had genuine wish for the relationship, the point is it has ended and there was a time. Acknowledge that and acknowledge your disappointment that leaving a relationship has occurred and you'll come through this in time.
Many who are you looking for relationship separation advice set for the relationship to be over and have no interest in trying to conserve the relationship, and they will walk away cold turkey, so to speak. Break up advice for those who want to save the marriage or save a relationship need to learn how to carry themselves during the time when arrows and bows, quite perhaps, might be flying.
If you are at the point where your partner states comments about leaving a relationship and wants to end the relationship, then my suggestion is start thinking about the phases of feelings following a separation. If you have no interest in reviving the relationship, then the relationship break up advice you're looking for is about discovering healing strategies so you may let move and go on.