R.K.
that's tough, but I think you have to do what you feel is right for your child, even if its a bit uncomfortable. Have you talked to your friend's mom about the things that bother you? That might be a start, but i'm not sure if it would really help as I don't know the situation. And if you have other reasons for switching his daycare - that aren't directly related to her, maybe you could emphasize those? Is her home a bit far out of your way, you could say you found a closer place to take him? Just throwing out ideas - I'm not necessarily trying to condone lying to her. I'd say think about what bothers you and how you could bring them up to discuss them. After all, this is your baby :) And only you, mama, knows what is best for him...
R.