I'm just curious why you think these are "odd" parts of her personality, particularly when you've said elsewhere in this comment and elsewhere that this role and these skills are very necessary for a business and she's made a huge impact on the company?

She is a founder of YC, BTW - that's what it means to be a co-founder. You could just as easily say that PG was dating the founder of YC, and she made use of his technical expertise and that of his friends in judging startups.