This event could be a breaking point. Snape might start to distance himself from Lily. Before, he still had some hope that they could be close again. But after seeing her with James, he may think that there's no chance. He could become colder towards her, and their friendship would be almost irreparable.
It would strain their relationship even more. Snape's love for Lily was already on shaky ground due to their different paths. Seeing her with James would make him feel like she has completely chosen the other side, and he might start to resent her a bit.
Seeing Lily and James kissing in the fanfiction would cause Snape to re - evaluate his relationship with Lily. He might feel that she has betrayed his love and trust. This could lead to him cutting off any remaining emotional ties with her. He would no longer see her as the same Lily he once knew and loved, and instead view her as someone who has fully committed to a world that he feels is against him.
Snape's view of James might not change much at first. He has such deep - seated hatred for James due to their past. But if the fanfiction shows James in a more positive or sympathetic light, he may start to question his long - held beliefs about him, just a little bit.
In many fanfictions, when Snape sees Lily and James, it's a turning point for his character. He could see their relationship as a sign of his own inadequacy, which might initially make him more vengeful. However, as time passes, he might come to understand that his actions are driving Lily further away. This realization could lead to a more complex Snape. He might struggle with his feelings, trying to balance his love for Lily with his dislike for James. Eventually, he might grow to accept their relationship, but still hold a special place in his heart for Lily. This new - found acceptance could make him more empathetic towards others in the long run.
Well, it's a really heart - breaking moment for Snape. He loved Lily deeply, and seeing her with James, who he had a rivalry with, must have been like a dagger to his heart. His love for Lily was complex and seeing this would have filled him with a mix of jealousy, rage, and deep sadness.
Often, fanfiction will explore the idea of Lily having a deeper understanding of Snape's actions and motives. This can lead to a relationship where she is more forgiving and empathetic towards him. For instance, in some stories, when Snape is bullied, Lily steps in more actively to defend him, which changes the dynamic of their relationship. In other cases, the relationship might be reimagined in a romantic way that was only hinted at in the original. There could be a scenario where they actually start a relationship during their Hogwarts years, which would completely change the course of their individual lives and how they interact with other characters like James Potter.
He might be filled with intense jealousy and pain. Snape has deep feelings for Lily, so seeing her with James would be like a dagger to his heart. He could feel a mix of anger towards James and self - loathing for not being the one with Lily.
It deteriorates rapidly. Lily is likely to be extremely hurt and angry. She probably won't be able to forgive Snape easily, if at all. Their relationship which might have had some complexity and depth before, turns into one of animosity from Lily's side.
It can intensify the conflict. Snape's jealousy can lead to more confrontations between him and James, which might draw in their respective friends and create more chaos at Hogwarts.
It could make Snape more bitter. Since he lost Lily to James, he might become even more withdrawn and focused on his own studies or other solitary pursuits. This could further isolate him from others and fuel his resentment towards James and his group.
Snape might be initially in shock. He had trusted Lily deeply, so the betrayal would hit him hard. He could become very angry and bitter, perhaps vowing revenge against her. He might also close himself off emotionally, not wanting to trust anyone again.
Often, his jealousy is manifested in his actions towards James. He might try to outdo James in academic or magical feats, all because he wants to prove that he is better than James, especially in Lily's eyes. And when it comes to Lily, he may be secretly longing for her attention while trying to hide his feelings because he knows she is with James.