>>/11897/
I still personally think it was Seth himself who "noticed" and posted their Overwatch profile activity. It was only 3-4 days before it was supposed to happen, and she had planned it ahead of time, so the timing was convenient. Add to that, his hubris always caused both of them a lot of trouble. 

The first post to note it:

https://desuarchive.org/wsg/thread/3104422/#3106035