I won't talk about MC's "why the plot changed" mindset, 'cause I can't defend him in that.
But I think his reasoning to why reject ML is valid, he know he'll go back to real world and if he in the relationship it'll just cause pain. At least it's not the "you'll fall for the other character just like novel. Everything Will go to the original plot" type of MC. At least he acknowledged the changes in the plot
I won't talk about MC's "why the plot changed" mindset, 'cause I can't defend him in that.
But I think his reasoning to why reject ML is valid, he know he'll go back to real world and if he in the relationship it'll just cause pain.
At least it's not the "you'll fall for the other character just like novel. Everything Will go to the original plot" type of MC. At least he acknowledged the changes in the plot