Breaking a bad habit. . . I go into teacher mode

I told my colleague about a really short date I had that I sort of cut off because I had to run to my friend's house to do laundry.  It was during that time when I had no electricity about a month ago and I have no shortage of stories about that situation.

She asked if there had been any more dates with him.  I stopped and thought. Yeah, there were two more after that.  She asked if I thought there would be a fourth.  "No. . ."  I said.  I explained why I didn't like him in a nutshell - he doesn't know enough about the world.

Sounds snobby.  But the problem is, if I have to teach it's like I'm at work (not relaxing and fun). When someone asks me something about the an area I know about it's hard for me not to respond by teaching them about it.  This guy asked me about everything.  He asked me tons of questions.  What are curds and whey? he asked.  What's it going to be like when OSU goes to the semester system? What self help books do you read? Really what's it about?

I really need to break the habit of going into teacher mode when someone asks me about something. Actually, I should call him.  I need to practice. :-)