Dissapeared ID in "initialchatfriendslist" on facebook page source?

in "initialchatfriendslist" in facebook page source, is there possible that an user ID (about I know is waching my profile) to dissapear? I mean, I saw that ID 3 days ago, but now dissapeared completely from the list. please help. 10x a lot

in "initialchatfriendslist" in facebook page source, is there possible that an user ID (about I know is waching my profile) to dissapear? I mean, I saw that ID 3 days ...

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