Alternatively, she's embelishing her history to stoke her brothers sense of jealously hoping that will push him over the edge and admit his feelings.I think most of those are easily explained.
- She has only had sex with 2 people, but she fucked them a lot (maybe one more than the other). "Fucks a lot" doesn't necessarily mean she "Fucks with a lot of people".
People lie about their experiences a lot. It wouldn't surprise me in the slightest if Hailey has had exactly 2 partners and not that much experience to boast about. Not saying she's a virgin or dismissing the known prior relationships but that doesn't mean it's not possible that the teacher was all of twice along side her ex.