May I ask- when and why did rumors appear?
Gossip magazine called Josei Seven is the only one who started this rumor and other post on the net is just picking up the summary from this article. This magazine is well known for making up stories or compiling stories from 2 channel fan threads where fans often just fantasize or post whatever they wish to write without any source and sometimes stories blow bigger and bigger( I hope you know what I am talking about). I recalled several cases of this in Japanese actor and actress who happened to be my fav whom I follow their fan thread closely and wowed at how closely the stories they wrote on the article resembled what fans were talking about on the thread. Off couse the contents in the stories are not substantiated nor backed by reliable source, but just rumors or rather what fans wanted to happen.
I read recent article on Yuzu on this magazine and it was just laughable. It even said Yuzu is based in Vancouver, for example. What was probably true is that Yuzu denied that they are in special relationship, Girl A deneid it and they were close friends in high school and they still keep in touch, but she never said they went out together alone.
No other gossip papers or tabloid followed up on this topic because they know Josei Seven just make up stories. Only one other tablod Sankei Sports breifly mentioned this as a rumor but also wrote that ANA personnel clearly denied it and even said " I have never heard of him currently having girlfriend".
Mao has been picked up by this magazine in the past as being mentioned by someone here I think as Mao and Daisuke are passionately in love . She innocently said "I never knew it is Ok to tell a lie on the magizine!".

I am feeling weird writing this long response about really silly gossip in the middle of the night here in Japan , but I had to deal with really shocking case at work and woke up in the middle of the night and couldn't go back to sleep and had nothing else to do

Well, I am looking foward to see Nobu Yuzu Mao interaction in NHK EXHIBITON practice tomorrow

I think there will be Press conference on the exhibiton too.( He might be asked again this stupid rumor question

) I think Yuzu should go back to TCC as soon as possible so he does not have to deal with those stupid gossip and feel more freedom and concentrate on skating.