I'm with tc1 on this one. Stand up for your ride, sister.
This woman may hang out with you, but she doesn't sound like a very good friend if she's willing to hold you back like that. 1.5 miles and then a break? Seriously? How is that training for anything? What is she going to do when those new people she recruited get better and want more of a workout?
I also agree with Tangentgirl about the vendetta thing. That's nothing to hold a friendship together.
A true friend would push you to be the best you can be, even if that means you're faster than she is.
Roxy
Getting in touch with my inner try-athlete.