Hmm, sorry, a bit of confusion, I think.Are you sure about that? Because even if Myriam doesn't go on the first date with Lucy, she still hangs out with her in the intro after she splits up with Anthony, and starts self-defence lessons then. That happens automatically, you can't avoid it. The only difference is, her fighting score is lower, if she starts self-defence lessons later.
And as for the 'scrambled eggs' scene, well she can still do that, regardless of how high her fighting score is. It's automatic if her dominance stat is higher than her submissiveness stat. Otherwise she has to decide to do it, or not
The part where I wrote "in reality", I really meant "in reality", as in "in real life".
Many make the assumption that if someone takes a couple of self-defence classes or anything similar, then in any danger situation will automatically be capable of fighting back by istinct and maybe even with perfect technique - that is not the case, there are other factors as well that can play.
At the same time, going back to the game, I am sure there is a variable to keep track of whether Myriam had self-defense lessons, and more importantly, how many (if you get only the basic, it stays at value 1), and I also remember well that there is one scene where the choices available change depending on whether that value is higher, or is stuck at 1.
I admit I am not 100% sure it is the "scrambled eggs" scene, but I remember well there at least one scene were the choices available depend from the that, as well as I remember well in my case the "make scrambled eggs" was only a possibility, it was not the automatic (only) choice.
If you gave more of your attention to Lucy, that can also have an impact.