Well, Sam hasn't come that far yet. If you look at it technically, they just kissed and had some light pedding were she did almost all the work herself (masturbated herfelf to orgasm). The whole thing just seems like much, because it took L&P years to get to this point.I totally understand where you're coming from, personally i like where the story is going between them, and the fact that Dylan is supposed to cruise past Sam in the evening event, tells me that she's been feeling something for Dylan but possibly quite a while now but never wanted to admit it because he is her baby boy after all, but after that hobo event where he stood tall and made sure Sophia was comfortable during that event, she just can't hide those feelings anymore, that's kinda how I see it.
I think the L&P post you recently shared gives a pretty good indication of what to expect:
"Yes, Dylan and Sophia can have a romantic relationship. But it will develop with time."
Based on that alone, I think it's going to take a lot more than just this one fight for Dylan to make some major steps forward. So, I think it will take some more game days (or decades of development ) before they really make serious progress. She may feel protected now and see unexpected strength in Dylan, but i do not think there is much more than that.
"The other way would be the cuck way, where Dylan will start to like to see his mom with other guys and will even try to create such situations."
Here I see far more potential. Although not yet in the current game day. If L&P is smart about this, he can create a lot of interesting twists and turns with this idea. I at least would like to see some more voyeurism in this game.
In general, I think it's a good idea not to expect too much for this game day. Especially since Sam hasn't really achieved much from a technical point of view. He was practically only a little bit more than just a spectator.