In reponse to your question - as you know, the first chart is always the most valid one, the most accurate one... The sequence does not really have any significance, except that you have been asking too many times about this guy! lol
But I can tell you that, Venus-Mars combination gives passion and emotional connection, the significators cannot be objective when they are ruled by this combination. The Sun/Saturn (Or Moon/Saturn) mean there is a power difference which is quite emotionaly charged. The two people approach the relationship with completey different agendas, 2 different perspectives. These two can be enemies, business partners etc.
Mercury/Jupiter has a more intellectual focus, more objective, less emotional to keep the relationship together if things go bad...
hope this helps!