He does seem to be obsessed with last year's win - I saw on one of the FB groups that he posted a video from his flat and he has various collages of him and Rose up in pride of place, as well as fan art of the two of them. Nothing wrong with that, of course, but it is totally different from his previous reactions to partnerships, and it seems he couldn't let that go this year. Now no matter what he does I will always think 'but he didn't post for Richie!'
From observing his SM actions etc he seems to be a real love bomber and then definitely with Ashley, Maura, and I think Georgia, he dropped them very suddenly. Maybe just gets bored, but probably a real headfuck after all the adoration..