Tall order but...looking for a mature romance anime or a mature horror anime with good animation I'm looking for either one of those two, or both, with good animation ideally.

For the romance one it would be amazing if MC didn't blush and stammer when his love interest blinks in his direction. For reference, I really loved White Album 2. My favorite romance thus far.

As far as horror...I loved Shiki and haven't been able to find anything close to it since, I gave Higurashi no Naku Koro ni and it looked promising but the non-sequential thing threw me off a bit. 

Psychological horror would be great too. 

Here's my list, any suggestions would be immensely appreciated! 