@Doomer pretty sure that this chapter has already answered that question. There are two Alan right now: one, the sickly and almost dead guy and the healthy, active Alan.
If you add the fact that a curse was placed on MC at the beginning and we didn't really get a confirmation of Hero being an arse, it just means one thing: whoever did MC dirty has moved to the Hero, which led to him becoming the same, if not even worse than MC was at the beginning.
I believe there is a third party involved and Hero is genuinely a good guy and that Ravi isn't in any actual danger, not with the sick Alan at least.
Also, all of this is just a conjecture and no spoiler at all. I did not read the novel at all.