Spoilers

So yes, the rape is not over :/ The silver haired ex friend (whose name I can't remember) turns out to be a mutation who can grow tentacles (and I'm sure you can see where this is going). The mutation dude kills all the people, MC grabs a gun but it's yoinked by the mutation before he's grabbed. The mutation reminisces on how he liked the MC before, you guessed it, he starts raping the MC with the tentacles and his own dick. The ML finally comes out of the woods and tries stabbing the mutation in the chest, ripping the MC away. The mutation stops him and throws the ML away again, grabbing the MC and continuing the rape. The ML then grabs the mutation, ripping him away from the MC, but he continues running, pulling him as far from the MC as possible, before running him and the mutation off a cliff. The MC passes out, and when he wakes up, he walks over to the cliff ledge, staring down.
That's the most recent raw chapter, so we don't know if the ML or mutated ex friend is dead (heh) or not or gone for good, which I'm sure it's not the end of the ML. But what a surprise, the ML was willing to sacrifice himself in order to save the MC