All guys need is a reason, one reason to go out with other women.
The reason you have given him right now is your current break up.
It is reason enough for him to start talking to girls and to ask them for their number.
It is reason enough for him to ask a girl out.
Want to know why? His conscience is clear that's why.
If a girl asks if he has a girlfriend, his answer will be an emphatic no.
He is not lying, he is being truthful, and after all you are broken up and to him that is fair game to do what ever he pleases.
He is free to say and act the way he wants to, but you can make sure that he stays home like a good guy should.
If you just let him know that you still care about him that is all that is needed.
Just let your ex boyfriend know that you still love him regardless of the break up and that will plant a little seed in his head that will grow big enough to put a wedge between himself and another girl's bed.
A guy's conscience is no longer free and clear if the break up happens and the girls say that she loves him.
That just leaves it open as a separation, not an official break up.
This oftentimes is enough to make a guy want to leave than avenue open.
Once it is open you can be sure that you still have a fighting chance to get him back.