I can't say about episodes, but definitely didn't plan to end quickly, especially with how slow the relationships develop.
For the latter part, on one hand I don't want to spoil anything that I have ideas about that, but also I'll openly say as it's my first game and story writing and all, I am unsure how good and well developed that part I can do. In my ideal vision yes, in later stages of the game there should be references and consequences depending if you pursued or did something intimate with another girl. But also the Girls don't suddenly have Xray vision and professor Xavier mind capabilities😁
So unless you as a player share something, or girls share for certain reasons something with each other, or they see you with someone, then they won't know what you did and with who. Also, mc isn't in any relationships yet, and naturally there won't be some punishment so early on if you did something with someone while everyone is free and available.
Hopefully that answers the questions and explains my thought process at least a little bit ^^
for your first game you've done an amazing job so far, definitely enjoyed it so far. But its definitely a relief seeing you say that! In far too many games where you do all that with multiple people despite no relationship, other characters always has issues with it, especially if it's with someone don't like. Or even if you don't get caught the system makes them already or comes back to haunt them. Glad to see some realism in the relationships and such. Love the quality of love interests, makes it hard to choose which goes first. 😂