You've not gotten over him yet because you dwell in your obsession of him instead of doing the mental work you should do to get over him and to the stage of indifference to him.
Here is how you will stop hurting and actually be open in mind and heart to be with someone new and not use them as a human bandaid to help you stop hurting. (don't be using men to get over some self-interested douche bag)
Stop clinging to your hope and dreams and wishes that he'd suddenly change and want you in a monogamous and committed manner. You always take him back so he always contacts you when it suits him and then you willingly lay with him once again which brings out your lust and infatuation to the point that you're addicted to the experience once again.
You need to take him down off the admiration platform you currently have him on. He is a self-serving player and opportunist who played on your vulnerability and addiction to him EVEN after knowing that you loved him when he did not love you. He would make a lousy LIFEmate. He's too selfish and self-important to give up his ability to take advantage of willing, low self-esteemed women who let men who have clearly told them that he doesn't want what they want but he'll keep taking as long as you're giving.
You aren't over him at all simply because you haven't accepted the truth. You haven't forgiven yourself for your own culpability in this and you've not done the mental work you need to do to stop dwelling in your thoughts of him. Once you start purposely changing the subject of him from your thoughts when he pops into your mind, once you accept he's never been a good man or partner, once you rehab from your sexual addiction to him, once you go cold turkey withdrawl by blocking and deleting him and so you don't anticipate his contact.. You will be on your way to that blissful stage of indifference to him.
Start by realizing he would never have been a decent good man to you. Decent and good men don't keep coming back to take advantage of women they know are in love with them when they don't love them back.
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P.S. Even when he contacted you he told you "he missed the fun times" but he NEVER asked you to be in a monogamous committed relationship with you, did he?
Forgive yourself for taking him back in the same manner that you parted in. If you learn from this then you'll also heal much quicker because you'll stop viewing yourself as a victim and rather take responsibility for what you allowed.
You'll be fine, once you accept the truth of the matter.
“The willingness to accept responsibility for one’s own life is the source from which self-respect springs.” ~Joan Didion