From the rap "No Lie" by 2 Chainz:
Thug life: one wife, a mistress, and a girlfriend.It's an interesting point Mr. Chainz makes here: men have distinctive relationship needs. A wife is your respectable peer in public settings, manages your household, and raises your children. A mistress satisfies sexual urges and gives approval of your success. A girlfriend gives affection and is a focus for your affection. A man needs all three aspects of a relationship, and if any one is missing, he'll go find it in another relationship.
In terms of meeting these needs, my wife scores a 100% on being a wife and a 100% on being a mistress. (She's only "70% [my] girlfriend," though*, so she's got something she can work on in the future.)
Happy Valentine's Day! According to 2 Chainz, I'm living the thug life!
* = Direct quote of my wife, first week of January, 2001.