This might be a spoiler and a stupid thought but fuck it.
So in out of the panels the blonde haired dude put a flower ring on black haired dude finger (his ring finger) and I think ever since then black haired dude thought they were engaged and the rings that black haired dude was looking at with the woman is probably rings for their weddings?
This doesn't rlly make sense (I dont remember if there was a panel where Black haired dude and purple woman were like married married with the ceremony n everything) but it might be possible since black haired dude just looks like he'd be dumb ash (I mean look at his face)
wait holy shit this actually makes a lot of sense, i was thinking in that panel "that's the engagement ring finger ain't it?" and now this
OMG WHY DOES SHE BLABBER SM SHE TOOK UP 4 PANELS TO SPEAK IN ESSAYS
Bruh i didnt even pay attention to it i only read the ending and the beginning i skip it all