Something

RewriteEngine On
RewriteCond %{HTTP_HOST} !^(www\.)?freechristiandatingwebsite\.com$ [NC]
RewriteCond %{HTTP_HOST} ^([^.]+)\.freechristiandatingwebsite\.com$ [NC]
RewriteRule ^(.*)$ /home/lddmarketing/%1.freechristiandatingwebsite.com/$1 [L,NS]