I can explain but it's a spoiler, so I'll add some ... so that people have to click read more in order to see this.
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Two endings are when your walking home with Patrick and two are when you're walking alone.
1. Walking with Patrick: You need to have 10 points in either love or stalking. If you have points in both it depends then on what you think of Patrick. If you think he's sweet it will use the love points first(Taking you to the love ending). If you think he's strange it will use the stalking points first (taking you to the stalking ending)
2. All of the above again except without Patrick.
Then there are 2 other endings. Tricked and Too Close
3. Too close: This happens when you pry into Patrick's past. Walk me home> Talk> Gossip> Ask about the day> Empathize> Sweet> Lasagna> Laugh> Ask What hobby> Pry.
4. Tricked: TBA I will edit this comment in a moment but there was a bug(that you found) and I need to upload a new version of CIWYH. Sorry about that. I was the only one bug sweeping this time around so some may have slipped through the cracks.
Edit: Ok new builds are up- Tricked: Decline> Call> let the timer run out> sweet> What are you doing here?> Oh, that's sweet> Yea> Any> Decline> Stay silent> Text back> End