Witness Protection Program

Definition:

When entering a relationship, you blow off all your friends and family, possibly even your career goals for a new and enchanting lover.

Exemplification of Usage:

Her:  I can’t believe Monica has disappeared again!  She met a new guy and I haven’t even heard from her in two months!

Him: It sounds like she’s practically on a witness protection program!

Her: No thanks to all that! I may miss a guy, but I’ll miss me more!