I still can't get over about this separated man that i dated (will truly appreciate as many advice if possible?

Sitting at home, in front of your PC, writing in Yahoo answers won't help you stop being sad. Get out. Go to a friend's place, go to your parent's, go anywhere. Get out of the house, staying inside on your own and being miserable isn't helping you. Go exercise, jogg, go out for coffee with your girlfriends, have fun. Be around other people, be around friends. Time will make the sadness better but if you continue wallowing in your own misery alone, don't expect it to go away magically. Help yourself.