Kind of annoying that if you do even one thing wrong, the girls in the game go from absolutely loving you to completely disinterested. Checked the walkthrough and apparently, because I didn't hack my stepmother's psychologist's emails and crash my sister's date (as I figured meeting up with the mysterious fellow who says my life depends on the meeting was more important), neither of them want anything to do with me anymore...
I suppose I could go back a way and redo specifically those choices, but then I realised I'll have to just follow the walkthrough entirely to make sure that deciding to walk on my hands instead of spinning in a circle doesn't end in celibacy, and I lost my motivation to bother.