Homestuck why must you do this.

[snarp]

TG: the moment i first saw that ring
TG: i was like in my head
TG: thinkin
TG: some day i want to give that ring to the person i marry
TG: whoever that is
GT: Daw.
GT: Thats not lame thats nice.
TG: nah its pretty lame but w/e
TG: shows what sorta one track mind i got
TG: god i am obsessed with findin somebody to kiss arent i
TG: it is rly quite pathetic
TG: although the funny thing is the ring turns you invisible
TG: which might be my subconscious telling me something about my lovelife
TG: like i find a guy of my dreams
TG: slip it on his finger
TG: and POOF he disappears!
TG: bye bye hubby

So, John currently has a void ring, right? Or some kind of weird dream-dimensional duplicate of one? And he did poof-disappear from right next to her, when Meenah hit him with her 2x3dent.

If Roxy had worked in another remark about the Batterwitch being at fault for her personal unhappiness in this respect, I think John/Roxy would've been canonized. The Vatican would've been terribly confused.

(They've never had a single conversation, nor does either even technically know that the other exists.)