I get a little miffed at Shin-san for his slow attitude towards Schnee, but... I guess he's just a sane person who was gaming for... fun? When the whole "death game" started, maybe he was that 1/5x10⁸⁷⁵ in all of humanity that was a dedicated gamer who doesn't have massive social issues?
Because if so, he would just see Schnee as a program, or construct; seeing her as a living, thinking, and feeling being with emotions that exist (much less reciprocate those emotions!) should really take a while.
Still....
If he doesn't want to hook up with the ladies here, I'm quite emotionally fucked up, so I can take one or two for the team.😅😅😅