I'm not a expert, but, its been my experience that he will start to avoid you, he will make up excuses to not come around you, he will hide his cell phone from you, he will do things to get you mad at him, he will hope you break up with him first so he don't feel bad about hurting you,that will be his justification. Break up with him before he breaks up with you, that will Damage his ego. And if hes going to break up with you, there wont be anything you can do to change his mind. Lastly, if hes thinking about cheating on you, know that he will do it again and again, that's just how they are. It happened to me one time I know the signs, now I see my male friends doing the same thing he did. Good luck.
(new answer can be also used)
im my experience, sometimes they would say they need to talk. it could go good or bad we dont know. but when he does it dont freak out. just say sure or ask him why he is doing it. maybe say u can change if he doesnt like wat u r doing.
hope that helped a little
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