Believe in it!

If you believe that you and your ex can still be together even though he keeps pressing on that he don't want you anymore, just believe that you can achieve him back. Win his heart with the tips from this site, they're all worth a shot. Always remember, don't look like you want him so desperately. Just send off some signals once in a while but do not beg. He is someone who was once attracted to you, he can be re-attracted to you, just find what was it in the first place he was attracted to. =)
hope this helps, i'm trying too. All the best!