Mil desperately trying to babysit my daughter

We moved closer to my husband's family this year so that our child will have cousins , grandparents etc . My side of the family do not live in the same country..so we wanted to be close to at least one side of the family at least ever since then , she has started all sorts of nonsense. She used to be like that even then , but I just ignored her or called her BS straight out which of course she was pissed but I set boundaries even then. She doesn't get to see our daughter as often as the other grandkids because we don't ask her for babysitting help. I prefer to hire paid help for it instead. Just so , it's easier and she won't use it to manipulate me. I know it definitely rubs her the wrong way but free help is sometimes more work. She has offered babysitting help multiple times My husband said No thank you , and I laughed when I heard about it later on from him. She is probably so pissed that I set strict boundaries even though she lives 20 min drive away. I also have a shitty relationship with her cause she constantly talks shit Abt me to others . About the way I am and how I over parent my daughter. And I'm sick of her double face game where she is nice to me and talks so much shit behind my back. Not once has she apologized.