I read your post along the lines of Lynn......if she hasn't really gone to a therapist & been formally dx'ed with OCD but it using the term for the things that she is "HIGHLY DRIVEN" in.....I can understand the issues you are having with what she is claiming......but in the whole scheme of life...it doesn't really matter. Here is the DSM's write up & way they use to determine OCD...you might want to just print it out & give it to her if she hasn't actually been formally dx'ed.
http://psychcentral.com/disorders/ocd/...if nothing else, it will be educational for her since she likes to read.
Usually to be Dx'ed with a mental illness (MI), it has to be something that is actually disrupting your life & life style & actually HURTING you rather than something you are just driven to be obsessive or compulsive about.....that is usually the defining line between just being Obsessive/Driven & being Obsessive/Compulsive as defined by the DSM & a formal psychologist.
Hey...noticed you are in Kentucky....you go to UK? or one of the other universities here?.....I just moved to KY 4 years ago....really LOVE it here.