Ride and Bye
The opposite of Ride or Die (being there for someone no matter what, through good AND bad times). A "RIDE AND BYE" friend, is when someone that you believed was a good one, actually turns out to be a "fair-weathered" one. You eventually realize, they always seem to be around for the fun times, but when things get serious (when you often need friendship the most), they are always M.I.A. They're typically full of excuses and unapologetic, because they usually don't feel they've done anything wrong. This kind of friend is sometimes referred to as a "User" or a "Good Time Charlie", who are definitely the "ride and bye" type and NOT "ride or die"!
"I finally realized Lori was a "RIDE AND BYE" type friend, when she never came over to help when I broke my leg, but was always the first person at the door for my epic parties!"