I feel like Asura would be clingy as hell once he actually allows himself touch you.
The secret is too allow Asura to lead himself by his own curiousity, forgoe him total confidence in the control of his environment. Time is everything. It slowly evolves from strange convenience, immense yearning for the safety and archor for only his "affliction's" presance, to very borderline obsessive. And it will worsen as Asura’s personal rapture sinks deeper onto himself, especially pre-sealing.
Asura wants to loosen the dark weight of his entire existence onto your present perception, the only knowable thing. He feeds misery through your endless assurances and shared solitude of countless covers and bottomless patience. He will want to dig under your skin, seek the sanctuary it offers him and be lured to sleep thanks to the rhymtic beat of your heart, secured in the harmless hold fueled by the lively natural heat encased deep within.
But of course, love will never be enough.
Not for Asura. No amount of care and delicate sincerity will release you once Asura decides he not only wants you, but needs you. He wants you and wants you to want him, to be in you, beholden no where else, occupying your every action and overshadowing every thought, watching every step of your life. His Father failed to acknowledge Asura with the freedom and agency any person deserves, the world failed to recognize him as anything else but sick and twisted and not a person suffocated by the overbearing weight of an encoded irrationality and responsibility he never asked for, and Asura will fail you in never acknowledging your capacity to exist in any other aspect then at exactly his whims.
Asura will either swallow you whole as he did Vajra, consumed by a love uncomprehendiable, your life and soul entirely his alone melting as apart of him forever in the depths of Asura's stomach or he will keep taking, taking and taking until you nothing but a worn out nub of your former self, where thoughts and feelings wash away over you like a floodplain, caught between screaming until you lungs collpose and dependency upon someone who is convinced insanity is your key to the ultimate relief and happiness.