Looks like there are 2 people in the bed. She got caught cheating and he killed her and him. They were supposed to go on a trip and it was cancelled by her cheating. I edited my first comment before I realized you made a comment. I forgot to say that I loved the game.
So close!! You got the first part right, but notice the dropped briefcase. And the biggest part you're missing is why the protagonist killed himself. You have the information, it just needs to be pieced together to create a sequence of events. But you're 90% there. So glad you loved it!