Someone had rated this story lower because it could have been easily solved with “communication”, but when you think about how you act under stress and pressure, it’s hard to say that you can act ideally in every situation and use your words when those types of situations comes up. Especially when you’re young.

Ling Che is still bitter about the breakup at the start of the story. This is understandable because the more you love someone, the more it hurts when you part. His understanding of the breakup is that Xu Tangzhou said that their compatibility was too low and so he found someone else with a higher compatibility. If you loved and cherished someone, and they left you for such a reason, that would leave a shadow in your heart for sure.

Examples of cherishing Xu Tangzhou when they were dating: helping him study, taking care of him, driving hours to check in on him when he was sad, talking to about the future and planning for a future together. Even when they broke up, he drove to go see him in person but was heart broken because he saw Xu Tangzhou’s “new love”.

Reuniting with Xu Tangzhou brings back all these feelings he repressed, and he feels divided because he still loves Xu Tangzhou but he is also hurt by the past. This can be seen in his hot and cold interactions with Xu Tangzhou. In his mind, Xu Tangzhou left him for someone else. Now he is back and Ling Che wants him back in his life, but he also never got to outlet that feeling of hurt and betrayal so it manifests in micro passive aggressions towards Xu Tangzhou because he can’t tell Xu Tangzhou he is mad about the past because of the memory loss. He starts off angry because he doesn’t know that Xu Tangzhou lost his memory. Then, he softens up a tad when he finds out. He continues to softens as the story goes on, and especially feels regret as he learns the whole entire truth behind the break up. By the end of the story, he is very caring and doting towards Xu Tangzhou.

Xu Tangzhou is a sweet and naive kid. That’s the best way to put it. He’s that cute kid who listens and you’re like “awww. What a good kid.” But you wouldn’t blame him if he played a little prank and he's not a pushover.

Xu Tangzhou doesn’t remember the past, but still fell in love with Ling Che for a second time. He finds out from his agent that he used to date Ling Che pre-amnesia, but decides to hide the fact that he knows because he wants to pursue Ling Che. He doesn’t know why they broke up but just knows that he wants to date him and even wonders why past him broke up with such a person. He persists and ultimately succeeds in the end.

There are also fun interactions with other characters and it’s not 100 Lingche x Xu Tangzhou. I enjoy stories that flesh out interactions and relationships with other characters rather than just focusing on the two main characters.

Backstory about the misunderstanding:

Xu Tangzhou’s parents have a bad relationship and a very unhappy marriage. His mom thinks that it is because they decided to get married despite having a low a compatibility rating. She projects this onto Xu Tangzhou. When she finds out that Xu Tangzhou wants to be with Ling Che, she threatens Xu Tangzhou by telling him that she will commit su*cide. Because Xu Tangzhou cares for his mom, he agrees to break up with Ling Che over the phone. His phone is confiscated after that and he is unable to contact Ling Che after. They live in different cities as well Xu Tangzhou holds out until his college examinations and tricks his mom into getting him food for after the examination. He finishes his examination early and tries to set off to go see Ling Che by getting on a train. However, there is an accident and Xu Tangzhou is severely injured and suffered some brain damage. As a result, he lost a few years of his memory, including the time he dated Ling Che. Ling Che comes to see him at the hospital to get an explanation for the break up, but meets Xu Tangzhou’s father’s subordinate. The subordinate refused to let him see Xu Tangzhou, and Ling Che assumes that he is Xu Tangzhou’s new lover. He leaves heartbroken. I’m assuming that because dad was so worried about Xu Tangzhou’s health conditions, and considering that Ling Che is the reason that Xu Tangzhou got on the train, dad didn’t really think to clarify things with Ling Che. His mind was probably on healing his son. After that, Xu Tangzhou’s mom was worried about him remembering things from the past, so she got him a new phone, effectively isolating him and cutting him off from hearing about Ling Che through his friends.

Xu Tangzhou does tell his mom in the present (because she's trying to sabotage again), that things didn't work out between his parents because she didn't care enough/try enough and not because of comparability. He is willing to make that effort with Ling Che even if their compatibility is low.

These are major spoilers but there's still some other things I haven't spoiled yet, and I hope you take the to finish reading this.

MC and ML are young couple.
MC and parents find out his pheromone fit is 18%. (The compatibility between A and O, I presume)
MC doesn't mind but his parents do, mostly the mom. She wants to break it off because she things it won't work out, as her marriage with MC's dad did not work out. The dad isn't really relevant until after the accident, as he's a sh*t father.
MC gets into accident on his way to find ML. Causes amnesia, and his parent's get him to break it off with ML at this point, which he does, as he no longer remembers him anyway.
MC and ML meet years later.
Start to fall in love again, misunderstandings, misunderstandings, maybe he's not actually 18% but higher!!
MC has another slight accident from a black fan that lands him in hospital.
ML finds out MC never broke up with him legitimately.
Novel ends.

The MC didn't actually break up with him. He only finds this out in like, the last 5ish chapters though.

The self-righteous pride and self-righteous affection are all smashed in an instant. He should not give Xu Tangzhou love with a high attitude.

which will later proved to be wrong because of the lack of technology and research and will be successful through the Mc's friend

the ML saying derogatory words towards omega when MC himself is an omega