There are many ways to break off the relations with the married man, but the good moral endurance for this purpose is required. Of course, it still depends on the term of your communication, about its plans for you. But if you decided to finish this self-deception "about the best times", so you understood that you have with it absolutely different roads.
1. For a start be prepared morally. If you kept in contact with married man, so it was expensive to you. As they say: "the bandage which dried tear off, till it bleeds, but quickly". It is necessary to try to inspire in itself that it is a sin, and if you not believing person, then it is possible just to find priorities in life without married man. Nobody likes to be on the second plan, especially in "warm affairs".
2. It is better to reduce further actions to a conversation "confidentially", so to speak to sort things out. It is not necessary to say to it that you apply for the post of his wife because he can think that you to it had only mercantile purposes. Just it is worth proving to the man that you have absolutely different ways to lives that you are also worthy family happiness, but, alas, not with it. In this conversation it is important to show the dominating position and to try not to deviate from a subject. It will help to prove that you are ready resolutely.
3. If after this conversation constant calls, sms, e-mails with declarations of love begin, then do not ignore them, and just observe a distance in communication. There is it that the woman at once chops off all means of communication with her: blocks cell phone number, deletes e-mail, changes all contacts which are known to it. It is not desirable to do it. Just the man can apprehend such situation as a game and, of course, will want to become in it the winner.
4. Of course, there are cases when this confidential communication develops into conjugal ties, but such examples are single. It is possible to stop the relations, but only if it is very strong it to want, and to understand that the one who changed once can make it repeatedly.