Re:Unity 5 released with upgrades, full-featured free version
by stone-monkey on Wednesday March 04, 2015 @06:04AM
(#9143608)
I interpreted it from the perspective of the girlfriend. That is, her feelings on the the significant other being gone essentially the entire day.
So i can assume it means "that feel when girlfriend". No idea why having a girlfriend would make you work nights? This would make more sense in the context of
"that feel when no girlfriend"