The billionaires relentless love (prequel to the billionaires ex wife)

You watched the end but you never did read the start.
The Billionaires ex wife is back!!!!
Katherine gray is 20 and fresh out of college, she needs to intern somewhere and she needs to find an internship fast.
James Saunders an arrogant play boy turned business man set out to take the world of investments and financing by storm. his dad passed away leaving a multi billion dollar company for his son to takeover.
what happens when two very different people collide?? well you know the ending but you don't know the beginning