God, you might want to make the restroom easier to spot. That stupid button looks like a wall decoration or something. I was stuck for the longest time. Also, you should let players know through in game text that the heart icon has hints if you hover over the girl. It's not that intuitive since people may just click on the girl too fast to notice a hint.
edit: Ok, after passing the steps and looking back, I'm wondering if my issues were in the mentally challenged category. Part of it might have been because I played through this portion of the game a long time ago and was trying to rush it.
edit2: If you back out of Moe deal, MC refers to Mia as childhood friend even with the patch.