The plot is like this: mc believe he lives in a love game world, so he afraid if ml 100 loves would bring him to his previous life. That why he always try to decrease the capacity of ML's love, But he always fail because ML already love him to the point of "mc doing nothing" the love point would increase. That why he tried to run away thinking ML would hate him or something so he can decrease ML's love , so that make mc stay in that world much longer.
But on one chap he say "i didn't want him to die" what is that mean? (If he brought back to real world isn't he the one will die, what logic is that?) Alsooo... Why he didn't do 'communication'? At this rate he just played with someone feeling (well he did tho since he considered in this life as a game). And how tf he know that the so game he mention will ended as soon he reach 100%. Did author spit the spoiler to him? Lmao
Lol idk which chapter he saying that but the author telling us the plot that is the mc overthinking type. An inner problem like anxiety, didn't trust anyone, making him doing reckless decisions,(tbh I find it funny why he wait ml love capacity to be 90 and overthinking by it, like, why not before when 60/70, well.. maybe he love him so much that why he began to panic when her realised that ML's might not real) if he began to communicate maybe he afraid to be misunderstood as crazy person lol, but the manhwa still not finish yet maybe in the future he began to communicate with ml.
As for why MC's thinking that when love capacity 100% and the world would end, like I was saying, that just MC's overthinking, we don't know that yet if it true or not, maybe he really live in another parallel world. I know that MC's doing is frustrating (me too actually, it really reckless) but that what author wanted. Lol

whats with the sudden running away and chasing lol it was going so well until those came up...feels like the author wanted to change the plot midway or something...