So I Finally Asked

After the third call before 11Am, I asked a semi-rude question. Here is the conversation:

Me: "Do you ever get sick of talking to her?"
Co-Worker: "Who?"
Me: "Wasn't that your girlfriend?"
CW: "Yeah, why?"
Me: "Well, do you ever get sick of talking to her?"
CW: "No, why?"
Me: "Because it would drive me nuts if my girlfriend called me like 6 times a day, every day. That's all, I was just asking."
CW: cricket, cricket

He hasn't spoken to me at all since. So far, today rules. Now if he can do some actual work.....