Send them a text or an email to ask them to meet you in a neutral location. If you live in the same town, this is the best way to have the conversation about not being friends.  If they ask you what you want to talk about, say something vague. For example, you might say, "I just want to share some recent decisions with you." If they persist, remind them that you'd rather talk about it in person. If your friend lives out of town, send an email or text to schedule a time to talk on the phone. Obviously, in person is best, but if you live in different parts of the country this may not be an option. Be aware that written words can easily be misinterpreted. This is one reason why talking directly to the other person, even though it's hard, is best. You may have been wanting to free yourself from this friendship for a while, but when you meet with your friend, you'll need to be clear on the reasons why you're ending the friendship.  If you need to tell them what they've done that's contributed to your decision, think about how you can phrase this as kindly and gently as possible. You might not want them to know why you're ending things, and that's fine. It's okay to be vague, or to use phrases like, "Things have changed for me..." Don't feel like you have to justify your decision, or defend it. They may be upset or angry when they hear your news. Or, they may want to try to repair the friendship. You should decide ahead of time whether you'll be open to working on the friendship, or whether your decision is final.  If they get angry, you'll need to be prepared to take care of yourself. You don't need to make a scene - it's fine to simply walk away. Unless you've decided that you're open to repairing the friendship, keep it short. You don't have to help take care of them until they feel better. Simply state what you've decided, and tell them it's time for you both to move on. Don't get involved in debating whether or not you're right or wrong. If you've been friends a long time, chances are you share other friends...

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Write a summary of the previous text in Indonesian:
Buat jadwal untuk bertemunya secara langsung. Persiapkan diri. Ingatlah bahwa keputusan Anda ini bisa membuatnya terkejut. Ketahuilah bahwa Anda bisa kehilangan hal lainnya. Jangan membicarakan apa pun yang telah dilakukan mantan teman Anda. Lanjutkan kehidupan. Rawatlah diri Anda.