Thank you sooo so much for a very thought out and thorough review of the game!
First off, canonically, every character in the game is Bisexual and wears doc martens. We stand for the blue, pink, and purple.
By default as well, because it's a harem game, they're technically in an open-poly relationship but to stay within the fantasy and not cross and NTR lines - which we've decided early on to avoid - all the romanceable girls will only seek intimacy with the MC or other romanceable girls.
Group date events have been considered and suggested before but ultimately decided not to implement them because we couldn't find a very graceful way of implementing them in the code and wouldn't really add much to the experience besides gaining xp for 2 girls at once instead of just 1. Of course there's potential for 'events' but that's going into feature creep territory and we wanna use the calendar events we've introduced in 0.15 to be the bread and butter of all the girls interacting with each other in a special setting.
There already is a filter by gifts that grays out the gifts already given but in 0.15 we've gone even further and added a 'like/dislike/neutral' indicator on the gifts so when you filter, you can then see and be reminded of how each girl reacted to the gifts given to them.
We've thought about buying consumables vs gaining consumables through wins and we've gone with the latter because we didn't want the player to easily hoard and exploit its power, at a certain point, it'd be too easy for the player to obtain through buying unless we scale the price every time.
MC clothing, are probably low priority. We did add new clothing items every update but have since neglected it due to players thinking they're not that important to work on.
As for phone calls, we don't at the moment have any big plans for them besides using them to check on their locations and being able to invite clients over to your place. It's kind of just an add-on feature and there was never any big plans for it and probably won't. Dialogue is just more interesting face-to-face.
BDSM is def something I'd like to add more of and future clients will definitely revolve around that. Chapter 1 characters are more vanilla and as we add more characters, they'll lean harder into their 'stereotype' and 'kink' preference.
As for the bugs, I'll look into it, but either I'll need more detail because they're the kind that are soo very circumstantial and very difficult to recreate or I've fixed them.
Again, thank you sooo much for playing and the long feedback. I love reading these!