~first~ and ~second~, your individual cycles do not have much in common during this period, but they should not produce many relationship challenges. 

~first~, although your 2 cycle could heighten your sensitivity, try not to attach too much importance to your emotional ups and downs. This period is best spent on practical matters and determining what is most important to you. 

During this period, it might feel like ~second~ is distant at times and lives in a world that excludes you. In a way, this is true. ~second~ will be experiencing a period of self-reflection, concerned with the inner mysteries of life from a philosophical, intellectual, or spiritual perspective. Your best response is to focus on your own life - especially the practical side of your career, home, finances, and so forth. 

If either of you feel ~second~ is more interested in their needs over that of the relationship, consider that this is not necessarily negative or selfish, nor an indication the relationship is in trouble. Your needs and priorities are simply different right now; the relationship should be quite safe since neither of you has a desire to rock the boat. Allowing each other the space and freedom to pursue individual interests can ultimately strengthen your relationship.