Thanks! All's fixed and will be patched in 0.4.1.
As for the scenario with Tanesha... the walkthrough actually recommends choosing Amelia for this specific date scene (unless you can't stand her) because those who do will still get a very similar scene/date with Tanesha later on. Meanwhile, you'll never get another chance with Amelia so if you want both girls, opt to see Amelia in this update/make sure she agrees to date you in Ch3.
This was one of those rare instances where players won't have a direct/immediate choice between events -- but they technically still do, since the event that occurs is the result of an earlier choice.