Tell her why it cannot work out, and explain to her that there is nothing wrong with her. It is just that you are not meant to be together and maybe right then, it seems hard, but after a while, she will meet someone more suited for her, and be happier.
Always let her know that you are doing it because it is in the best interests of both you.
The best way to win a girl's heart is to be kind. However, if she wants to break up with you, you cannot force her to stay. It is best to let her go.
Be dirty... but not in a good way
Say "You should break up with that girl she secretly doesn't like you at all and is going to break up with you later on".
there is no way
Umm, yeah, if there's another girl go ahead and break up with him either way.
support them both
Face to face, but in the nicest way possible.
Say nice words, remind her of all the good times, say ' I love you ' . Unless this girl feels the same way though, there isn't a way, her heart will break and she will have to get over the break-up in her own time.
Buy a grinder
Your best friend. Usually teenagers have a best friend who will know how to deal with breakups and relationships
There is no easy way to break up with a boy even though he is committed to you. If you do not love him then honesty is the best policy. He certainly will be hurt, but many couples break up and survive. In time he will find a girl more suited to him. Love comes and goes very quickly with the young.
It depends on the situation. If you can meet the girl directly without any constraints go for that option.