A trust was broken .... you left her once! You can't give her a promise 100% that you won't leave her. Don't make promises you may not be able to keep. If she is willing to get back with you then you are going to have to do a lot of hard work such as better communication skills and respect and loyalty towards her to make her trust you again. Most times the 'grass on the other side of the fences ISN'T greener!'
Tell him to go and leave you alone.
Only if you are sure that you will never talk to your ex girlfriend again.
tell him to leave you alone and tell a parent
You never know if it's meant to be then it will happen but if not then you probably should wait until you feel sparks again
If he broke your heart, tell him that you don't want it to happen again. If you broke his heart, then try to never see him again and let him know that you're occupied with other stuff.
No you shouldnt.
Sit him down and talk with him. Tell him that you messed up and will never do it again. I wish you all the luck in the world:)
Don't sit around moping over it and get out socially and start dating again. If your ex truly loves you then they'll come back and if not, then you were never meant to be and probably better off for it.
Tell him you got her pregnant.
Make sure he never lies again!
No, because right then you know he is a coward if he called his ex twice about his kids, and didn't even tell u. You should NEVER be ashamed to say you called about your kids.
There is a good possibly your ex may want to get back into a relationship with you again. Be wise and think about it before leaping into another relationship with your ex. Tell your ex you will think about it; do so and then let them know your answer.