why are women who show "too much" skin aren't taken seriously? i don't get how nudity correlates to a functioning brain?
the nudity/exposed skin isn't on its own the reason why such women aren't taken as seriously. rather, it's their inability to recognize and adapt to their situation/environment and to observe the expectations of that particular situation.example: no one judges women who are showing tons of skin on a beach, because that's an appropriate place to show tons of skin. but if you have an office job and you go to work dressed like a call girl, then you will be dressed inappropriately for the situation, and people won't take you seriously. it's no different than if you were to go meet with an investment banker about managing your money, and when you show up to his office, he's wearing shorts and a hoodie - while that *technically* doesn't mean he's not good at his job, such clothes are inappropriate for that context, and a lot of potential customers are going to walk away.people who aren't able to determine that they are dressed inappropriately for their situation are having their judgement called into question more than the clothes themselves. if your judgement is questionable (or outright wrong), then people aren't going to take you seriously in other areas either.
maybe in you limited experience with t1dm you know of one or more with this appearance. in the spectrum of those affected i find you cannot generalize this description to them at all. you would not be able to pick most out of a crowd. see more... no. people who have been in a persistent vegetative state rarely just open their eyes and start asking questions- like "how long have i been out?"- like on tv. they very gradually begin to be aware of their surroundings, and no- they don't bound out of the bed either. they are weakened and have lost muscle tone, and generally have a catheter in place! 
i always laugh when i see a scene like you described! she obviously has nothing better to do.
she has low self worth. i'm guessing she's a bit envious of you because she knows she should be exercising but isn't. that would explain why she shuts you down quickly by changing the topic. it's something she doesn't want to deal with.

remember that you don't need her approval or encouragement. it would be nice to have but she can't do that for you when it comes to your running success. 

good luck with the 1/2 marathon! she looks kind of sleazy and slutty it's an extra layer of clothing thereby making your legs fatter (although not enough for anyone to truly notice). It is normal to have more skin pigmentation in one's genital organs. Yo mama being so fat is sinful is gods eyes! as with anything, depends on the girl. some like it, some tolerate it, some hate maybe, if she has a self-esteem problem. in the end what you'll get is lots of cuts and bruises, and a bad sexual experience that makes you feel embarrassed every time you think about it for the rest of your life.