Some of the rules can be interpreted very differently. For example, if you are female, of age approximately 25 to 45 with no children and don't want children in the future, above 5 foot 6, possess you own hair and teeth, do not break mirrors with your looks, have a sense of humour and understand FTers, then a British passport could be yours via what may be referred to as the PM route.

I may have the odd single female friend out there as well

Good luck in your strife to become a subject of Her Britannic Majesty QE II gawd bless you ma'am.