Ohhhh now you're asking me something... I've been a mnsvnger since very early on (start of side 3ffects era) and I've witnessed a lot of progress in their relationship so I could honestly ramble about them for HOURS
But a hot take? HMMM I don't know if it's a hot take to say that I would genuinely be surprised if they aren't together. I have shipped a lot and I usually do it for fun and I love imagining my ships actually being together, but mnsvng is Different from any of my ships so far, and even my sister who wasn't a mnsvnger until 3 years after me agrees with me

Anyway, if that doesn't count then maybe it's a hot take to say that they Might have only made things official between them at the pool date?
Now let me start off by saying that that statement comes with a lot of prior assumptions, like the fact that they had feelings for each other and were aware of those prior to the pool date etc. but let's just have a little fun and imagine hahah
I don't necessarily think this because of the way they acted before the pool date, but more because of the fact that I can't really think of what else could have made that day so special + the way they've been acting after the pool date.

I'm no expert on what happened, but I know that they stayed at the hotel that day instead of joining the rest of sk1z at the beach near chxn's parents' home + a bbq with chxn's parents
My first thoughts were: why TF would they do that? like what was so important that they had to stay at the hotel? Maybe one of them wasn't feeling well? But then why would they go to the pool and look back so fondly on that day?
Did they want privacy? But why on that day specifically? What was so important that it couldn't wait until a different day where they wouldn't have different plans?
To be perfectly honest I have no frigging clue, but like I'm a scientist and I have a need to Figure Things Out
I know that we'll probably never know, but what we do know is that whatever happened that day was Important to them
Jsvng talked about their seemingly mundane day, at the pool, while neither of them can swim, both on bubbl as well as on both days of their sydney concerts, and Mnh0 talked about it on bubbl, too, which seems to me like that day is pretty significant to them
If I remember correctly, they've sort of hinted towards celebrating 100 days (and 200????) since they pool date, which is common for kr couples

Anyways... What I'm trying to say is that I've convinced myself that the pool date is Very Significant to mnsvng and they've been super close and pretty open with affection ever since, so Maybe that's the day they've become official??? The day they finally adressed things and decided: Fuck It. We'll do it.
I'm not excluding the possibility that they knew about each other's feelings before this, that's still def a possibility in my mind, and I might be super wrong about all of this, but!! who knows?

SO let me just end this by saying that these are my thoughts and that I am no expert and that I might be super off about this, but for me it's fun to try and puzzle out clues and try to figure out a plausible scenario while keeping in mind as much context as I can HAHA
Thank you for the question and I hope this made a little bit of sense and isn't just nonsense rambling