There may be a time in the life of a family member or friend’s life that they earnestly express the need for some alone time. The time will be necessary to deal with personal issues that are so very, very hard to deal with: issues that they need to work out on their own and in their own way. Generally speaking, these are issues connected with dealing with grief so hard for them to comprehend but also so personal that they want or need no outside support or commiseration.
But here is a suggestion. This alone time is not and should not be forever. Such a person will NOT reach out to reconnect and will likely just be alone.