I know exactly how you feel 'dragonphoto'.
I have been in your shoes many times with the same woman. The empty feeling in the house the sight of not waking up to the person you love. While you two were together you both had control of the situation. But now that you're apart I'm sure both of you are hurting inside and try to mask it by doing things you wouldn't normally do. Unless the problems started with intimate unfaithfulness then I don't know what to say regarding that. But know that there's folks out there that have been down the same road.