When I first started dating the one who shall remain nameless, I introduced her to my Palm Pilot III as "my girlfriend."
When we got married, my PDA at the time (whatever it was), was promoted to "mistress."
The other night we were chatting about how important (at least we think it is) to ensure that your first line of emotional outlet is with your spouse. When married couples rely on friends or therapists instead of a spouse is when, I think, some get into trouble.
She said to me, "you know sometimes I think the Blog may be your first line of emotional outlet. The blog is your new mistress." She said it with a smile, so she was joking...sort of :-)