Heh, 2 hours in the tub will give you wrinkles as well...
This bit of advice may be a little late, but in general I tend to not emphasize the fasting or 5:2 aspect of what I'm doing to lose weight (and I'm fortunate enough to have lost weight at a pace that gets noticed, so people ask me how I did it). Usually I just say, "well, the short answer is that I ate less and exercised more, but there's a longer answer to that if you're really interested." You can usually gauge how a person is going to react to 5:2 based on how they follow that up.
I think that a lot of the negative reactions to this WoE are based on unfortunate word choices that were made to make this a best-selling diet, and combined with the whole reality that it is new, and it is popular, and therefore a 'fad,' then people often forget that they fast every single day of their lives and that 'breakfast' is a term that scares nobody. Is it unhealthy to fast 8 hours every single day? Why is it unhealthy to skip the morning meal and break your fast at noon, or skip two meals and break the fast in the late afternoon?
Also, again because they needed to sell books, the marketers promise that "you can eat whatever you want!" in those periods when you're not fasting, which simply isn't true. If you do intermittent fasting, and eat bread and wine and beer and sugary sodas and cakes and cookies and blow through your TDEE plus more in a single meal then you won't lose weight, and you'll probably develop all the insulin resistance you would have gotten had you not skipped breakfast in the first place.
In your specific case, as has been pointed out, this has less to do with the WoE and more to do with a mother who doesn't want her daughter to grow up and make her own decisions. That's as natural as, well, mothers and daughters...
Don't know if this helps. Best of luck to you, though.
(Now suddenly a hot bath sounds good, and I'm not all that stressed...)