You really ought to have started a new thread, and you really ought to read up on the legalities of all this before starting 'in business'.
But just to help, your GF isn't '100% correct with the law'. In fact she's 100% incorrect. A fact you'd have gleaned, if you'd only read this thread.
However, some people have an expectation of privacy, and you've shot these weddings 'as a mate', so whether you've ever broached the subject of using images for advertising purposes with your couples becomes an issue. Because whilst you're free to post whatever you like on the web, as soon as you're shooting commissioned work, you need the permission of the customer.
Welcome aboard - we really are helpful in the business section if you want any more advice.