My thoughts on the novel spoilers as someone who read it

Im not specifying too many details in this one but some of u may have checked novel spoilers somewhere which i did too. I read from chapter 100 to the end of the novel. Yes the spoilers are correct mostly. Its very angsty and hard to get through that one arc. Its really painful and i dont think i can reread it in manhwa form again. Though some see him as irredeemable, i disagree. I wouldve agreed more and more the closer i was to that arc. But some people probably stopped reading after getting frustrated which i understand since it was frustrating. Some people do make him sound like he did something roses & champagne level tomfoolery. No he didnt, he shattered her heart in worst ways possible and even had that teasing tone when trying to win her back in the beginning. But suprisingly for someone so kind the mc was not budging, even after mls ego was destroyed and he truly saw everything from her point of view. Yes he was shortsighted with rage and didnt see her point of view back then. Yes he shattered her heart into bits and pieces and watched the villagers angrily try to rip her apart with a cold gaze. He thought she was playing him for the hell of it, didnt believe her declarations of love. But he hated himself for it later, and most of all finally gave her space without clinging to her with his apologies like he did. He did what he could to make what he did up to her and she finally after a good while accepted it. Im happy for them, and most of all im no longer angry at him (his current self). It was a rollercoaster of emotions, the read rips u apart and heals those wounds in the end. But with these angsty stories my only question is why? What do we gain from getting pain only to get it healed. Nothing changed from before reading except memories of distain at the worst arcs.