When you ask your ex to come back or tell them you want them back, They are thinking “Why would I want to come back?” Some exes even get turned off, especially if you keep asking them to come back.
Your ex needs more than your regrets, pleas for them to come back or expression of how much you love them.
So stop asking them to come back over and over. It’s not going to work.
Giving them space them space (only if they asked for it), helps if your ex is a dismissive avoidant. But space alone isn’t an incentive for an ex to come back. There is only one thing that can dramatically increase your chances. Your chances depend son it.