How can you tell your boyfriend that he needs to get over his ex or break up with him?

Please help me. My friend wants to know how to tell her boyfriend to get over his ex or how to break up with him, but in a nice way. 10 POINTS FOR EBST ANSWER!How can you tell your boyfriend that he needs to get over his ex or break up with him?
Tell her to break up with him. I've been there. I wasted almost two years of my life. He has to get over her before he can be with someone else. It might hurt, but it's for the best that she does that. She shouldn't have to compete with someone when she is with him. If he isn't over her, or still talks to her and stuff. He is probably just using her to have someone to either help him get over it or deal with it.How can you tell your boyfriend that he needs to get over his ex or break up with him?
If he can't get over her try to find out why they broke up.. Maybe she might get back into his life.. Is he loves your friend.. Im not saying he would automatically forget his ex.. but he would be thinking of your friend more than any other girl.. If my boyfriend was still involved or talking to his ex very closely I would be suspicious of his feelings towards me.. I would think of myself as a rebound..On the contrary IF he has feeling for your friend tell him to stop communicating with the ex...and if he cant let go.. she should let him go.
Well, this is a difficult situation, but i would advise that you tell him that she is his boyfriend now, and he needs to move on, that ship has come and sailed and he should pay attention to the ship at harbor.