1. When all the romance is out of a
relationship but
people are still in it because they are used to it.
2. When someone does something out of mundane habit, when he or she used to derive pleasure/
happiness from it
"We've been together for 2 years now, but it's really because we'
re used to being together"
"So you'
re just chewing the popsicle
stick now, right?"