I don't really believe in primaries and secondaries.
I live with my husband, so I see him every day. SEE him, that is, I don't get to spend quality, date-like time with him every day.
Other people I am dating, I generally see once or twice a week. If schedules work out and I get to see them more often, I love it.
I have friends that I see at least once every other week, ideally once a week.
No kids, and I have a 4 day work week, which helps me see people quite a bit.