Permanary
1. A combination of the words permanent and temporary.

2. Used when someone presents something as permanent when it is actually temporary and/or vice versa. This may be done purposefully or in error.
a.
BOSS: This will be your office while you work here.
YOU: This windowed cornered office is the business.
COWORKER/JERK: Don't get too comfy. No one has stayed in this office too long. It is totally permanary.

b. Just because he/she says "We are going to be together for ever..." doesn't mean that the relationship will avoid permanarity.