The problem is that you are letting his actions dictate your life. This isn't a game. It's either your changes are real or not. If you are making changes only to "attract" him back, they aren't going to work.
He has to feel and be afraid that you have gotten over him. The only way to do that is to really do so. Let's face it, you haven't been able to control his behavior from Day 1. Yet he has been able to control yours. And he doesn't even live with you any more. Stop being a puppet for his convenience. Live first and ask questions later.
That's what DB is all about. Whatever you tried before, you have to give it a 2 week window. Then if that doesn't work, try something else. You've given this man 4 years of power over you. Do something different.
M-43 W-40 2D - 9 and 5
Emotion, yet peace. Ignorance, yet knowledge. Passion, yet serenity. Chaos, yet harmony. Death, yet a new life.