Venus - Love

The planet Venus has a Mars (the metal associated with Mars is Iron) core.  he stronger the Mars is, the more formidable the Venus is. 

Seemingly this Mars is what Venus consumes

If there's not any Mars to consume, then Venus has chronic feelings of emptiness.  Which can be a symptom of Borderline Personality Disorder, Depression, or Major Depression Disorder.
The Mars is someone's motivation.
See Seth, The Egyptian God of Disorder for more.

What's love got to do, got to do with it?  What's love but a second-hand emotion?

Venus is a planet associated with pleasure and love. 

Sometimes, there is a need to love yourself.  However, other times there's an understanding or realization that your Venus placement means all those you love, including yourself at times.