I've definitely seen the pattern you describe many times. The couple that manages this best is one where Sun--Wed is single friends time and Thurs--Sat is coup

I've definitely seen the pattern you describe many times. The couple that manages this best is one where Sun--Wed is single friends time and Thurs--Sat is couples friends time. Probably not for everyone but this seems to work remarkably well for them. Kids would probably change things though.