So I've RP'd a few relationships with Ghost. I heavily communicate OOC and I never had any issues.
The two situations I saw with him and others... In one, the person said they were OK with something and then got hugely upset OOC over that very thing. He didn't handle it perfectly after that point, no. However, the other person was at fault in that she said 'OK' to something and then got upset when that thing happened. That's not on him.
In the other, the person never communicated anything- they just expected the IC flirting to evolve into a Twue Wuv Forever and when it didn't, got hugely upset.
With the latter situation, I'd seen her do similar on other games. She had a tendency to plot out her character's entire future, how it involved other people, and never tell those people... but get upset when they didn't fall in line. This one is more squarely on her. I tried mediating for her on a few MU*s before I had to fully wash my hands of her.
But, really, I have to vehemently disagree with the 'refuse to communicate OOCly' part.