If you decide to keep the relationship with the person, everyday life with which you have become boring, have pretty work. And, as paradoxical as it may sound, it is necessary to start with yourself. Another person - a whole universe, and the universe can not be changed, and whether it is necessary to do? It's easier to clean up the mess with your head, in your thoughts.
To begin remember why you decided to keep the love. After all, this idea came into your head on purpose. The person with whom you yourself once tied, you care, you value him for something. Hopefully, it's not just the money or the possibility that he (or she) can give you. Let's talk about the people who are really connected souls, not just bodies and selfish thoughts.
If a deep emotional attachment - that is the case, then write down on a piece of paper itself (or just check in my head) the positive traits that you've ever seen in my man or his girlfriend. Not to conceal anything, be extremely honest with yourself, as though you may be angry now.
Remembering all this, start to treat a man, seeing it as only these same traits. Objectivity is not for you, your goal - to bring man back into his heart. Force yourself to feel again the respect for the person, affection, love, make the focus of your life on common interests, which you may well have already forgotten. If between you really have a common feeling, everything is back. If not - probably already and you should not pull the strap on.
Having done all this, look at the reaction of his neighbor. If he is happy to have occurred in a change, ready to assist you, this may be enough. Now it is his turn to act. After all, not all of you to drag myself! But if he continues to behave the same way, try to just talk to the person and explain the situation to him and his way of thinking. Maybe he just has a better understanding of speech than the behavior?