The degree of emotional strength that exists between two people. Relationship Intensity (RI) equals Relationship Level (RL) multiplied by Progression Time (PT), for each level, multiplied by Total Time Invested (TI).
RI = (RL x PT) x TI
Relationship Intensity for someone in a Facebook confirmed relationship for 30 days would be 9000.
RI = (10 x 30) x 30 = 9000