Plot Idea: Nothing Stays the Same (Mystery/Slice o

It's been two months since a high-school senior boy was rejected by his childhood friend and first love, who said she saw him as family rather than romantically. Of course, he was heartbroken by the whole thing, however now she says she didn't tell the truth and that she has loved him for years as well. So of course he is thrilled to start dating her: a quiet, sweet girl who has always supported him. However, the longer they date the more changes she seems to go through. It starts with the way she dresses, her haircut, the way she talks, everything seems to be slowly changing, and unexplainable things seem to be happening. Girls that talk to him have bad luck, if he spends too long without texting her something bad always happens. Of course, it's not like any of those things could be her fault, as some are something no human could control. On the opposite, all of his problems start going away. The sports team he just barely didn't make the cut for suddenly needs another player. His parents work things out and decide not to get a divorce. His grades improve though he doesn't study. Things are going...too well, even with his girlfriend's changes.

On top of all this, the senior is also having strange dreams of a girl who looks exactly like who his girlfriend is changing to look like, who keeps telling him not to trust her, and that he has to escape. This dream girl also promises to get him out, whatever that means. It doesn't help that he feels like someone is missing every day too, like someone who was there before was suddenly gone, but he can't put his finger on it. Whatever is happening, he isn't sure, but he wishes things would be the same as they used to be.

Notes:
-I wanted this plot to have my partner go through the days as a slice of life roleplay as you slower get clues and discover what is going on.
-Always up to switch the roles and see what kind of mystery my partner can come up with!