I have 2.5 partners.
Kip; I see once a week for a few hours.
Prof; 2 or more times a week, one mid week sleep over and some nights watching tv and hanging out.
And new partner hopefully will slot into alternate weekends, and the occasional mid-week. He is a full-time single dad, so has time constraints, as do I.
3 is definitely enough.
I like to see partner type people regularly, occasional FB, FWB or LD wouldn't work for me.
Me: 40s female
Prof: 50s male.