He's big city;she's small town girl.
I think he was into sports (hockey, basketball, maybe football?), but I can see Flack being a pretty good student. He has a lot of common sense. He doesn't strike me as the stereotypical dumb jock---I think he was probably a well rounded student and athlete. I think he was probably a good history/social studies student. But I'm baised on that subject area! LOL!
Somehow I see him charming some of his teachers with those pretty blue eyes. I think he was probably respectful of his teachers and their authority. He might have rebelled every so often, but not all the time. Flack and his dad had some problems, but I don't see him getting into any trouble that would affect his future.
I think that Flack had his fair pick of the ladies, but I don't really see him being a player or a hound dog about girls. I think he probably dated a lot in high school, but was picky about who he dated. I don't see Flack as a guy who has ever been into 'skanky' women or girls.
Lindsay may be into science, but she is pretty outgoing, not withdrawn. I think that she was involved in the student council---maybe helped run student government campaigns. She likes football, so I could see her going to the games. I think maybe she played tennis or participated in some type of athletics because she is tough when she needs to be. She was also raised on a ranch or near one---so I don't see her as someone who spent all of her time in the books or stuck in a lab all the time. I think she was probably involved in many different activities.
I could see Lindsay having a high school sweetheart that she possibly got engaged to and then later broke up with.
Ultimately though, it's hard to read Lindsay----the secrets from her past might have changed her---who knows---she might not have even considered a job in the science field. For all we know she was a perky twirler!