There is a wealthy, well to do couple now in their late 50s/early60s in the town I grew up in, who have known me since my teenage years when I was in foster care who were always quite helpful to me in terms of introductions, finding me job interviews and checking up on me. I've always been extremely grateful to them and shown them that. They have not really acknowledged my upward trajectory, which I would say I have been on for the last decade since I hit 30. I did not rely on them for money, housing or anything like that. But they were a consistent presence in my life. They still however see me as the "poor unfortunate" one.

They sound like a pair of do-gooders who cannot cope with the fact that the "poor abused foster child" is now an independent career woman who doesn't need their patronage.
Recently, they asked me out for lunch because they wanted to speak to me. When I got there, they told me that their daughter (who is 19) has just qualified as a "wellness coach" and is looking for clients. They said they had told her about my past DV situation
WTactualF?
HOW FUCKING DARE THEY?
You are not the latest piece of gossip, a charity project, or an object to be pitied.
They spilled your personal information to a third party without your permission? I don't give a shit that it's their precious DD they told - that is not their information to spill.
It reeks of 'ownership' - that they feel not just entitled to tell third parties your private history, but to use that history to define you by.
and that they think she would be very good for me in terms of giving me therapy, life coaching, apparently she does a combo of wellness techniques and therapy. They were pushing it very strongly and trying to get me to call her while we were at lunch asking for her services. She obviously has no clients and they had obviously promised her they would get me to do it. And pay her, obviously.
They can seriously fuck off.
They think you owe them.
I hope you are totally, 100% clear in your mind that you do NOT.
I am having a real allergic reaction to this. Partly because, I think, they have an outdated version of me in their minds. Partly because, I have sought, am capable of seeking and will seek the help I need rather than have it foisted on to me, and thirdly because she is 19 and from a priveleged upbringing with no problems, and I have no idea how she feels she can advise a 40 year old working single mum of three on "wellness." I don't want to be ungrateful but AIBU?
Not only should you not be grateful - you have every right to be incandescently angry about this.
They reckon their privileged teenager has something to teach YOU about life? What a fucking joke!
I imagine the lunch was excruciating, you were squirming with unexpressed emotion which you felt constrained from expressing.
So ... don't stay trapped in a projected narrative that no longer applies to you.
Don't even feel the need to have this couple in your life any more if you don't wish to.
If you feel unable to say "no" in person, write to them. Something along the lines of -
"Hi, Overbearing Twats Acquaintance Couple
Thanks for lunch the other day, it was kind of you to take me out, & I'd also like to acknowledge all the encouragement you gave me when I was a teenager, & struggling with the difficult childhood issues you are of.
However, I'm not interested in Life or Wellness Coaching, as I have my own support networks in place for everything I need both professionally & personally. So I don't need to take up your offer to pay your teenager for her 'advice' thanks!
I suspect you might find that phrasing somewhat abrupt, but I'm actually being extremely polite, given that you saw fit to disclose the confidential details of the DV I escaped. I'm not sure why you felt that was necessary, or felt entitled to share it, & I'm baffled what you think your child could teach me about life, or what on earth you think her qualifications are to coach any DV survivor.
It was good to see you, but I'm not sure that you really 'see' me for who I am now, if that makes sense. You were kind to me when I was much younger, but don't seem to be able to accept that I am a survivor, not a victim. I am a 40 year old career woman, raising her children & managing her household singlehandedly, & I don't need to be patronised. I certainly don't need to cope with the ethical violation of having my private history of abuse disclosed without my permission, & the fact that you did that for commercial reasons, so that your daughter could have an opportunity to charge me for her "coaching" is extremely distasteful.
I'm happy to continue our acquaintance on a civil footing, but would prefer that you stop perceiving me as a victim, stop portraying me as one, & never betray my trust like that again. If that is unpalatable to you, perhaps it's better to wish you well & thank you for the kindly hand you extended all those years ago - but this unpleasant episode is beyond the pale, so whether we meet again or not - I don't wish to discuss the topic further.
Good luck to your daughter in her future career, & best wishes,
Yellowsplashes"