I came up with a crazy theory about Nami. On her path, we may learn that she is *partially* responsible for how Nika has become and that she was once completely different. What if it was not just anger, rage, jealousy, but something much darker? Who is Nami? This is the closest person to Nicka. She can figuratively stab MC with a knife, and Nika will still care about her more than about himself. What if that's exactly what happened? What if she was the one who sent Nick to the hospital? In the beginning, Nami is just jealous about Summer (first meeting). Then the three of them become friends, Nami tries to copy Summer. The beginning of the game is the last kiss with Summer, when she calls Nami a fool. By this point, they had already moved away from Nami (indifference and ignore). What happened next? It was 2 weeks of summer vacation. It was then that Nami had a skirmish with Nick, where she was not herself and stabbed Nick with a knife. When Nika woke up in bed, he did not give Nami away, saying to police that he did not remember anything. And they made a deal to forget this event. After the vacation, Summer found out that Nick was in the hospital and she visited him with her parents. For Summer's parents, this was the last straw (he was already a bad influence on her) and they expressed a lot of hurtful words to him, which added to the psychological trauma even more.
By the way, on the path of Bella, when Nami offers to teach Nick all sorts of *things*, it was a wake-up call for me back then. This may not be a happy love triangle, but full of dramatic horror.