No, Vika - the University roommate.
Just talk/study with her repeatedly and she will come up with it.
There's a umber of events and storylines that assume Sveta to be straight or bi but more than that there are storylines that require sexual acts with guys even if that is not the ultimate goal. So yeah but you will miss out on stuff and some of the text will suggest Sveta is not gay even if you avoid the problematic stories/events. Of course there are some forced events that don't give Sveta choice and while that would be the same regardless of sexuality it doesn't take it into account in the text or Sveta's inner thoughts.
As long as school is still happening they should still be there, but you won't be able to study with them. As it is a nerds study group.
I've actually studied with them as a non-nerd in previous playthroughs. They are a little hesitant at first, "don't make trouble". But now they're not there, and Feofan still keeps inviting to gamenights.
If you are not a nerd you shouldn't be able to, you can go when they are studying and wait till they finish and talk to them but not join them. If at any time you could that was a bug.
The same happened to me and I asked about it on discord. The reason I was given is that he nerds will let you study with them, even if you're a cook kid or jock, if your grades are low. This corresponds to my particular experience, went from jocks early game to cool kids and that didn't seem to affect my ability to study with them. After my grades started to show as 4's, they were no longer available. Sucks, but it it's aimed at distinguishing gameplay between cliques, it's fair. You can't play football with the jocks unless you're a jock, either.
I honestly don't know, I never played the mod so I have no clue what might even fit the main game so couldn't even hazard a guess.
Mostly a big expansion of Kolka interactions and random events around the house with a few big paths to choose. Kolka could use more content anyway so I hope it gets added in the future!
