Oh, it's because I took your bed and you had to sleep on the couch.
5 seconds sound clip from the The Seven Year Itch (1952) movie soundboard.
You can hear this line at 01:34:51 in the Blu-ray version of the movie.
Quote context
[...]
- I'm going fast. Give me a cigarette.
- A cigarette? You know what Dr. Murphy told you about smoking.
- A cigarette. Just one more cigarette, Dr. Murphy. One more for the road... for the long, long road.
- A cigarette. I need a cigarette.
- They're right there on the table.
- Oh, it's because I took your bed and you had to sleep on the couch.
- I knew I should've taken the couch. I just feel terrible.
- It's not the couch. It's my wife. She found out about us, and she shot me.
- Five times in the back and twice in the belly.
- You're just having a bad dream.
- Come on now. Everything's fine.
[...]