inflationship
The added committment that goes along with the length and intensity of a relationship.
First he left his toothbrush at my place, now he wants me to call him rather than texting. It looks like I'm in an inflationship :)
Inflationship
To date purely to split the cost of shelter, groceries and gas.
Their relationship was was one of convenience---they both supported each other's lifestyles by covering half their costs of living, it was an inflationship.