Hi there. What an unfortunate situation you found yourself in. I guess we all have to learn some way, even if it takes 6 times not to get paid.. I was thinking about your question if it would be ethical to approach the couples. I actually do not have an answer to that, as in comparison, what she did was far beyond unethical - it was unlawful.
As someone here already mentioned, I'd be more concerned about your rights you actually have in relation to those pictures (mentioning all that - I totally don't agree with posting them over here).
If I'd find myself in your shoes, I might want to approach them with gift of the images and my own business details to pass on to their friends and family :)
Keep us updated.
