Bottoms on top

I read the novel for this first and it's better but it may not be everyone's cup of tea. The author role-swapped the aggressive ceo rapey top type and made him the bottom instead. MC/bottom keeps pushing the top/ML's buttons and won't take rejection and gets wrecked as a result. Contains SA. Both characters are red flags. They switch at the very end in the novel (only implied) but the ML prefers to top and it's implied they usually stick to that.