Should I tell him to leave me alone?

Should I tell my boyfriend to leave me alone? I still call him my boyfriend because it hasn't hit me we're not officially together anymore and because he keeps talking to me. So of course I like that he is still talking to me, it shows that he misses me and I don't want him out of my life. I love him and I'm crazy about him. he's the only human being i like to be honest. But its bothering me how he finds it okay to still talk to me like a girlfriend but not want to actually be together. I understand why we can't be together right now which sucks a lot because as much as we want to make it work, its not the right thing to do at the moment. So now it's kind of like we're talking but not taking it seriously. I honestly dont think he is using me on purpose because he's lonely or whatever but this might be whats happening so he's innocent cause he doesn't know he's doing this. he's the one who broke up with me yet he's the one whos communicating the most. Like i said, I like how he keeps talking to me because I miss him and want him in my life and it shows he misses me too but at the same time, I don't want him to lead me on because he knows I love him and I'm just crazy about him so if he keeps talking to me like the way he's been talking to me, of course I'm going to be stuck on him. So what should I do? Should I go with the flow and we keep talking in hopes of getting back together or should I tell him to leave me alone completely? like cut off the contact 100%? and tell him to talk to me only when he's ready to get back together? I would choose the first option but only knowing that we will get back together and that he's not using me because I want him in my life. Or actually should I just ask him straight up why is he talking to me so much but doesn't want a relationship? I just dont want to come off as nagging.
Should I tell him to leave me alone?
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