Your friend needs love and support, not a lesson on what is morally right or wrong. Your friend probably feels ashamed, guilty, and emotionally hurt. Lecturing your friend won't help you connect or maintain your relationship. You may feel angry or guilty about your friend's attempt and want to ask about why they didn't ask for help. But questioning your friend won't be the most helpful for them or your relationship if the attempt was recent. Don't pretend like the attempt never happened or ignore it and hope that things go back to normal. You should not completely ignore what happened, even if your friend doesn't mention it. Try to say something nice and supportive, even if it doesn't come out right. It's better to bring it up than say nothing at all.  For example, you could say that you are sorry for how terrible your friend has been feeling, and ask if there is anything they need or that you can do. Whatever you say, reassure your friend that you care about them. Remember that you're in an uncomfortable situation, and that nobody knows exactly how to act when someone close to them has made an attempt on their life. Many people think that a suicide attempt was just a way to get attention and that the person wasn't really serious about taking their own life. A suicide attempt is a very serious situation and it shows that there are complex underlying factors and emotional pain for your friend. Avoid telling your friend that you think they did it just to get attention. In doing so, you are minimizing the seriousness of that life-changing decision and are making your friend feel terrible and unimportant in the process.  It's important to be as sensitive as possible. If you tell your friend that you think they did it just to get attention, then you're not really trying to understand the situation. While it may be easier for you to minimize your friend's problems, this really won't help your friend move on from the attempt. Making your friend feel guilty is insensitive, even if you may honestly feel hurt or...

How would you rephrase that briefly using Vietnamese?
Đừng trách mắng ngươi đó về việc tự tử. Thừa nhận việc tự tử. Nhận thức được việc tự tử là một vấn đề nghiêm trọng. Đừng khiến người đó cảm thấy tội lỗi. Hãy cho người ấy chút thời gian.