Sorry about your husband's illness and the care he needs. From experience I know how difficult life is for a full time caregiver. I would say a shop that gives you that kind of attitude after you explain why you missed the anniversary date is not looking for your business or any of your friend's business. I also know how just being able to do or even think about a quilting project can help keep you going. Get the machine serviced when time allows and don't be too concerned about it. Perhaps a friend could take it in for you.