There was a break in the meeting and she called to question why I thought she ran away from problems and why she should see a C. (I don't think she was mad.) I just told her that she needed to get some help, so that she didn't repeat these problems in her next relationship.
You might also point out to her that as caring and sensitive are her family and friends, they might not be giving her the best advice and support -- they are too close to the situation, have their own issues/baggage, and maybe even have an axe to grind with you (12_51) or someone in their own past.
If she found the right counselor, she would likely get more objective advice based on years of experience with all sorts of situations. She'd certainly get a different viewpoint, a different form of support. How can it hurt? [That question is to her, not you ]
You could also ask "This is a really significant turning point in your life, and I hope you are getting some support and opportunity to vent and bounce ideas off of someone, at least. Are you sure they [MIL, sister, girlfriend, bank-teller -- uhm, leave out the bank-teller] is the best possible source of support, understanding, and perspective on these things?"