This one is, I confess, more of a prompt then anything, but I thought it fit with this episode well enough that I put it here anyway.
Once the curse was broken, there were things that David purposely didn't allow himself to think about – things like his ex-wife, Kathryn. It wasn't that he – the shepherd-turned-prince husband of Snow White – loved Kathryn. He wasn't sure that even his Storybrooke counterpart ever had.
But he had memories of loving her – years ago, according to Storybrooke David; having a good marriage, even if she openly claimed to have never loved him. Those memories had been designed to torture him as their marriage fell apart, but they did their worst to him even later, once he knew it was all false.