People ask to explore what happened at the time, and to assess your coping strategies. For example, many people mention what pdocs consider protective measures against suicide, such as children, pets, family & friends. It can help for them to know what your 'don't do it' reasons are to remind you of them next time you feel suicidal. Studies have shown that talking about suicide with those who are suicidal does not increase their chances of suicide, and I find, personally, that it can actually be really helpful in releasing the 'pressure valve' inside you.

*Willow*