I don't think that Nikita will explain his reasons in the near future. Someone who had always communication problems with his partner?! Probably won't tell anything in public. If I understand it right on fyeahilinykhkatsalapov.tumblr.com/ he's waiting for the decision of the federation and that's it. I'm sorry for Lena during this waiting period, really. I had a different impression of Nikita, positive. This blur is really strange.

So much for my "girl of similar age who is jealous" theory! 
obviously our B/S just don't have enough drama off ice, told you, that's the main reason