Why is my ex keeping me around after our break up?

Me and my ex broke up about a month ago. It was his choice because he has different plans for his future and he doesn't want to drag me into it (he could potentially have a career that is far away and doesn't want to drag me into it - his future really is unpredictable).

BUT we agreed to still be close and we still talk everyday and hang out (as friends) though it hasn't been as much lately. Though we originally agreed to give each other space. We both agreed that we wouldn't be into another relationship for a long time and he knows that I will cut him off if he lies to me because he said I did nothing wrong in our relationship. I won't cut him off if he does find that other relationship when he goes off to his career (if he does). He told me that it will take him awhile to get over me and he needs time to heal. He also told me that there's no way that he's leaving me or what we had behind and he is the person that he is today because of me.

So why is he keeping me around? To truly keep this friendship? Or to possibly reconcile our relationship one day, if possible? I know if I ended a relationship with somebody I didn't wish to possibly get back together with in the future, I wouldn't want to keep them around in my life.
+1 y
We dated for 7 1/2 months but "talked" or whatever that is called 2 1/2 months prior to that. We rarely fought while we were dating. He told me there were no problems in our relationship.
Why is my ex keeping me around after our break up?
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