Even if we don't know who she is, she knows who she is, and if she's reading along seeing all the things people are writing about her, especially if she's uncomfortable to the point she won't speak up to defend herself against inaccuracies, then it can be very embarrassing to be the subject of the conversation.
Maybe I'm still old-fashioned about these things, but I, and I expect some others, consider a public announcement of one's relationship status to be a sign of a rather strong committment. It's something you do after you get to know someone and have dated for a bit and are ready to announce that it is now appropriate to invite them as a couple to gatherings and such. It comes somewhere after dating and before engagement.
It also puts the woman in question in a rather awkward position. There is now no way to turn down Wolram without causing him public embarrassment, so if she is not interested, does she just play along for a while, and possibly hurt him further by letting him think she's interested long enough to allow him to save face amidst everyone here, or does she turn him down and leave the poor fellow hanging his head in shame. I can only hope for both their sake that there is a mutual interest and she is not the sort of person who would be embarrassed by all this attention. If not, I'll have the tissue box ready for Wolram.