~first~ and ~second~, although they are quite different, your cycles are very compatible. You should both experience progress in your career and other practical, material endeavors. This is a favorable cycle with the potential to bring progress and possibly a financial windfall.

On a personal level, you will probably be more involved with each other as well, albeit in very different ways. ~first~, your 6 will be focused on matters of the heart, so you should feel strongly committed and eager to make your partner happy. Your cycle will focus on home, family, friends, and practical issues. 

~second~'s 8 will awaken leadership skills and ambition - even within the relationship. This could pose problems, because their tact and sensitivity may not be as keen as usual. ~second~ is taking more control over their life, which is an integral part of this cycle, but ~second~ must be careful not to carry that attitude into the relationship. You need love, not leadership. 
~second~ should focus their ambition on goals, and their heart on the relationship.