Yeah that's always the problem with having a linear scale -- whether it be Good/Evil, Law/Chaos, DIK/CHICK -- is that it's necessarily boxing you into a set of actions or reactions that are predictable. But the moment you diverge from that scale for the sake of story or character growth, like a DIK character confronting Sage about being her rebound guy, no matter how reasonable that is, it can and will cause confusion and criticism regardless of the merit of the interaction simply because players expect their choices to matter. This is why, if I were ever to make a game, I'd never put a system like this into it because it creates expectations and anxieties in players that they will be locked out of content they want for completely arbitrary reasons.
Here's the direct quote from the official season 1 walkthrough by DPC about what DIK points represent:
"In general, nicer/calmer/more mature actions remove DIK points and meaner/edgier/impulsive actions add DIK points."
In general, being a Massive DIK means you're mean/edgy/impulsive. That's a wide array of behaviors, as there's a big difference between being mean as opposed to being edgy as opposed to be impulsive. But still, it's not wide enough to actually allow for believable reactions to real situations. That's why you have these jarring moments in the game, like a DIK MC crying about Maya and Josy lying to him about their relationship when he should be trying to score the threesome right away, or crying about being Sage's rebound guy when by all accounts he should be much more confident and less insecure about that. Then, on the other end, when the scale is working as intended, all it's really doing is locking you out of content you might enjoy and giving you access to content you might not. For example, giving DIKs access to Madame for working at the Pink Rose is something I'm not interested in, and locking Bella's 69 option which I am interested in behind a CHICK check for no reason.
What is it about being meaner/edgier/impulsive that means I can't go down on Bella? Only the fact that she's a CHICK LI -- but is that even true, because you can romance her perfectly fine as a DIK, just like you can romance Sage perfectly fine as a CHICK. It don't make no sense, so I definitely share the fear that future content I'm interested in will be arbitrarily locked behind my affinity score for no good reason.
Anyway thanks for coming to my TED talk