Thank you for your reply Lyzzyy and I know you're correct. I've tried in the past to let her down easy and make excuses. I feel the average person would get the hint. If she does this again, I'm just going to say a simple "no" with nothing after.

I think women especially find it hard to say no, because we want people to like us and we're afraid to say no. I've even given this advice but I failed to follow it myself this time. There isn't much she or anyone can say, if I say "no" and that's what I'll do next time. I really don't care what she thinks at this point because I'm bothered. Her daughter should have told her last night, my daughter said "we're not available". I still can't believe she called my husband at work.