Quote from Marshall in The Rough Patch
Lily: Ted, it's just a rough patch. It takes time getting used to being with someone else. And they're both... What's the nice word for selfish? Marshall: Independent. Lily: Independent. Every relationship goes through this. Marshall: It's true. I have this astronaut friend, totally loved his fiancée. And then, the day before his mission, she caught him with, like, four other chicks, a couple of dudes. Things got really tense. Finally, she ended up sneaking out of the space shuttle... Ted: Are you talking about Space Orgy? Marshall: Yes, I am.