While there's no doubt Heeseo is in love with Tae-kyung, he clearly has underlying mental issues compounded by the obsession and which is sadly being overlooked by Tae-kyung. Sadly his obsession will consequently fuel an eventual psychotic breakdown that both will suffer from.
thats certainly not love. He's simply obsessed and infatuated. His emotions have nowhere else to go so hes directing it all towards Taekyung, be it anger confusion resentment fears insecurities lust etc. bottom line is that he's mentally unstable, and by giving in Taekyung is unfortunately further enabling his behavioral and mental issues.
What I love about this gem is how it portrays London to be this romantic destination. OK, I live in London and know all the places mentioned throughout, but I can't help wondering if the London in this story is in a parallel universe from mine. You know, a London with exquisite rose gardens, stately lush homes and pristine romantic atmosphere. I'd sure love to live in that London.
While Zin's actions are becoming increasing reckless and risking his life, he has assumed a stance that Idris is too afraid to take. I definitely back Zin's boldness and decisive moves because that's what's needed to tip the scales finally in this weird situation where the evil and incapable Laurent is in control. Good on him.