They have undeniable chemistry, and if it were to be a canon thing, it will be messed up because of how it started and I'm all for messed up relationships
I love the looks they give to each other and how Kai regrets what he did, and how Bonnie hates him so much for what he did to her. It means that she cares.
And there was a line she said to Damon about Kai, she told him that he stabbed her, chased after her in the hospital [...] but the worst thing is that he left her
alone. and I just love that part.