I don’t think he’s really being toxic, like I think in the contrary he’s giving the guy more freedom than most powerful seme’s we’ve seen. He isn’t implicating himself in the drama in a way that will hinder the MC’s newly found sense of freedom and he’s not forcefully making him stay by his side for “protection” or manipulate him into agreeing that he is happy with him.
The only issue I would have is if he doesn’t help him in time and MC gets hurt and he doesn’t feel guilty or bad about it
Like I’d be pissed
But letting the MC have full control and taking control damage control is better than the usual “Uke in distress and powerful Seme” trope i think even though this is strangely based on similar plot with its own completely different twist