My boyfriend is still hung up on his Ex. What should I do?

My boyfriend has been out of his last relationship for over a year. We met Feb of this year and now are in a committed relationship but there is a struggle on his end because he is still dealing with getting 100% over his ex of 6 years. He says that it’s not a problem, no chance of them getting back together. He says he just needs to get her completely out of his system and that only takes time cuz they were together for so long. I don’t know how to feel about this. I almost want to brake up with him to give him that space and time he needs to fully get over her but he doesn’t want that. I also don’t but kinda feels unfair to me. Don’t know if I’m over reacting because he is open and honest about his feelings. Am I just being crazy?

My boyfriend is still hung up on his Ex. What should I do?
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