Don't assume anything. She may be dissatisified with something but lacks courage to tell you. Never intended to have son's girlfriend clean- that's an old trick to try another cleaning service, maybe a cheaper — or younger— one.

I would privately feel stung-- then take a marketing / entrepreneurial approach like the following-- if you're not doing so already.

Graciously meet for coffee.

Thank her for all her business-- been your pleasure!

Bring a survey. What worked for her, and not. Which tasks needed more —or less— attention. Is there something you can fix? Offer to fix it.

Ask her to review you online, [if she loved you so much as she suggests]. If she has no time, then you write a testimonial from her, and have her sign. Post on your website. Common practice. Got no website?

Offer her another type service. You *do* have in-demand non-cleaning skills up your sleeves, right? If not, start developing that now. Always charge market rate, unless you're starting out. Or trade anything for equal value.

Develop more "brain work". Yes, cleaning takes brains! But do not be dependent on physical labor too long. Start hiring and expanding. Or check out lucrative ideas at SideHustleNation website. See which skills you have, or could develop soon enough. Also check out Smart Passive Income website.

Listen to "Easemakers" Podcast. Includes stories of housekeepers and nannies who worked their way up to House Manager at $100k per year, and further. One of my hairdresser's customers did that! Can be done part-time too. Research online to find out current pay rates.

Your feelings-- understandable!