Take a loved one to a psychiatrist, or call a psychiatrist at home if he does not want to go himself. Leave it to the professionals, and take off what you don't understand anyway.
An increased interest in suicide, no matter how close it is to the realization of suicide, is a sign that a person is in a bad state, his psyche is not in order. It is important to remember here that loved ones do not bear full responsibility for the person's condition, they can influence something, but most important of all is his own motivation, is he ready to deal with his problem, is he ready to treat it as a problem at all, and not consider it a property of character or a great truth revealed to him in connection with his special qualities.
If you are trying to give a list of recommendations (without a claim to be comprehensive), then I would single out the following:
Remember that he feels bad - regardless of whether he will or have had real attempts at suicide.
Remember that this is an abnormal condition that has nevertheless happened and is happening to many people; your loved one may think that his case is unique and unresolved, that if he is cured he will cease to be himself and much more; all this is not true, many people have faced it and many people have coped with it; it is a disease, it can and should be treated; the best thing for your loved one is to recognize your condition as an illness and refer to the experience of many people who have gone through it, including referring to a specialist; if he is ready for this, you can help him find the help he needs - there are quite a few options. He probably has a lot of problems with motivation and energy, help here will be useful.
Try, if possible, to take care of yourself and your life - improve your condition, save resources. This in itself can help, close to strong and prosperous people and breathe easier.
Try to acknowledge your feelings, including pain and fear for your loved one. It is not necessary to express everything if you find it inappropriate (although if the other person hurts you, it is usually appropriate to tell them about it), but you should not refuse them, devalue them in comparison with their pain and suppress them. It will be bad if your whole life revolves around the suffering of your loved one, and much better if he will be able to remember that you are also a living person, and your feelings are important too. People who are ill with something are usually egocentric, encouraging egocentrism does not help to cope with the problem, egocentrism separates a person from reality.
Try to notice and positively support any movement in the desired direction. The main thing to remember is that the biggest positive reinforcement for so many people is attention and interest. Attempts to overcome your own bad state should be supported positively, sliding into an emotional abyss and pressure on your nerves - no.
Remember that you are not responsible for his life. This is very important, not only because it can help you feel a little better, but also because the presence of a person with a lifeguard complex in a situation is never uluOn the contrary, it creates a group psychological game that is always more tenacious than the problem of just one person.
Just in case, take a psychiatrist (or at least a psychologist), the specialist will say - this is an attempt to attract attention or a mental disorder. Rather the first, tk. real suicides do not talk about their intentions, all the more so intrusively