Types of relationships

All inclusive = open relationship
Bed and breakfast = sex and meeting occasionally
Just bed = just sex
Just breakfast = only buddies
Half board = only one partner, preferably from the opposite sex, meeting rarely with friends, more with each other, in other words less public appearances and less seriousness
Full board = only one partner, preferably from the opposite sex, in a somewhat serious relationship for a specific time  including sex, meeting daily, spending time with each others friends etc.