Hiro

his past gf died 4 years ago before you two become couple, he can't still move on from her girlfriend who died 4 years ago, you're his lover now but he's just using you to erase his past and he doesn't really love you, but you love him so dearly, he hates it when you're complaining about how he feels about his lost gf and he's comparing you to her and he wants you dead instead of his past gf (you can be any gender!!)