Well, there could be a situation where they are having a quiet moment alone, perhaps by a beautiful, serene lake. Inuyasha, who has been struggling with his feelings for a long time, finally gathers the courage. He looks into Kagome's eyes and simply says something like 'Kagome, I love you.' It's a very straightforward yet heart - warming way of confessing.
One common setting is in a forest. The forest is often a place full of mystery and magic in the Inuyasha universe. It could be at night, with the moon shining through the trees, and Inuyasha takes Kagome's hand and tells her he loves her. It gives a very romantic and otherworldly feel.
Well, in some fanfictions, Kagome might hurt Inuyasha by saying mean things. For example, she could bring up his past mistakes or insecurities in a cruel way during an argument. This could really wound his pride and his feelings towards her.
Well, in some fanfictions, Inuyasha might hurt Kagome's feelings by being overly possessive. For example, he could get jealous when Kagome talks to other male characters and then say something harsh. Another way could be that he doesn't trust Kagome's judgment at times, like when she tries to come up with a plan to deal with a demon and he dismisses it rudely, making her feel unappreciated.
Inuyasha is devastated when Kagome gets hurt. He blames himself, especially if he was supposed to be protecting her. He'll pick her up gently and try to find a safe place to tend to her wounds. He might also call for help from his friends like Miroku or Sango. He'll stay by her side until she recovers, constantly on guard against any further threats.
There are fanfictions where Natsu's confession is more of a spur - of - the - moment thing during an argument. Maybe they are fighting about something stupid, and in the heat of the moment, Natsu blurts out his feelings. He might say something like 'I can't stand this arguing with you, Lucy, because I love you too much.'
Kagome might respond with anger. She could be furious at Inuyasha for his betrayal and might lash out at him. She might use her spiritual powers against him in a fit of rage.
At first, their relationship would be severely strained. Kagome would be angry and scared, feeling betrayed by Inuyasha. She might not trust him at all anymore.
Some great Inuyasha and Kagome fanfictions include those that focus on their adventures after the end of the series. For example, 'A New Beginning' which shows them building their life together in the feudal era. It has really good character development and stays true to their personalities.
The jealousy in fanfiction can both strengthen and strain their relationship. On one hand, it shows that they value each other enough to be possessive. For example, if Inuyasha gets jealous when another man flirts with Kagome, it might make Kagome feel special. But on the other hand, too much jealousy can lead to fights. If Kagome is constantly jealous of Inuyasha's past with Kikyo, it can create a rift between them.
Often, Kagome's injury is a catalyst for character development. Inuyasha may realize just how important she is to him on a deeper level. He might start to see her not just as a comrade in arms but as someone he can't live without. The other characters also have to adapt. Shippo might grow up a bit, trying to be more helpful in taking care of Kagome, which changes his role in the group.