It depends on what your goals are. Do you want him back? Do you want some space/time to yourself to decide what you want? If you want him back then I think playing a little hard to get isn't such a bad thing. If he's not just playing games then he'll give chase. If you aren't sure, perhaps you should get some space to think it through or explore your feelings. My only advice is to do what feels right to you. Do what will put you closer to your goal, whatever that is.

In the end, it's not the years in your life that count. It's the life in your years.
Abraham Lincoln

It is hard to fail, but it is worse never to have tried to succeed.
Theodore Roosevelt