Felix couldn't even talk to anyone about it, to get it off his chest. He didn't have to whom. There wasn't just anyone he was close enough with to discuss such… problems.
Eden? No, no matter how kind and helpful the Omega was, Felix still wouldn't feel comfortable entrusting him with his secrets. Or the witch's, in this case. And besides, even if he wanted to, Eden got kind of fretful whenever the witch was mentioned, too uneasy to get into any deeper conversation.
Remi? Complaining to Remi about Remi would be fine, under any normal circumstances… But not on this topic! He was a fox, he clearly knew what he was doing! Felix wouldn't give him the satisfaction of seeing how affected he was by it all.
Kade? Even worse! The Alpha was already wary of Felix's 'pet', who knew what he would have done - or at least tried to do - if he knew the whole truth?