This is my first post (hi!), but the thread was pointed out by some people I know and I thought I ought to take a look as it is a subject I have strong opinions on.
People have mentioned communication a lot already, but I am not sure I have seen anyone point out that communication is one of the most important components of any kind of relationship regardless of the medium it takes place in, whether it is between people in the real world, over the internet, or in roleplay for internet spaceships. Lack of communication between partners destroys relationships both in real life and in roleplay, whether that relationship is romantic or platonic or something else.
I have known a number of people, both in games and in the real world, for whom a breakdown in communication ripped apart something potentially wonderful and beautiful, even if all that the 'breakdown' boiled down to was a single missed conversation. Sometimes it was fixable, and sometimes it was not. For some of these people it has happened more than once, and it is very painful to watch when they are a friend of yours.
I originally made my character a widow because I wanted an easily understandable reason to avoid becoming directly involved in these sort of things with her, at least for a time while I got my footing in EVE and its roleplay community. I admit I have been a little reclusive and really only have done anything with a small handful of people outside of occasionally piping up in the Summit and trying to provide a moderate but still noticeably Amarrian voice to some of the more heated discussion topics.
But even keeping my distance with relationships that directly involve my own character I have still been touched by the ones between others. Sometimes in a good way. Sometimes not. And it makes me sad seeing people get hurt (both in
and out of character, because whether we like it or not we still put a piece of ourselves into our roleplay) because someone didn't think to talk to their RP partner, or someone didn't stop and suggest someone do so.
Quintrala demonstrates this very well, I think, with her hypothetical situation. Though it is not always just the people directly involved with the relationship that are harmed by these things happening. Sometimes there is collateral damage that people do not see - I have had arcs or storylines that I was involved in cut short without warning before as the result of communications breakdown between the person I was collaborating with and someone else.
It is not fun, especially when those storylines are leading to very significant character development for both parties - on top of whatever was going on where the communication broke down.