He was her most persistent 'suitor', and she eventually agreed to marry him.
An unwanted 'suitor' is buying up the company's stock.
(..) Yes, my queen. And in order to forge a lasting bond with the Meereenese people, I will marry the leader of an ancient family. Thankfully a suitor is already on his knees. Don't worry. I'll be fine. Nothing broken, I don't think. Where are we now? (..)2015 TvShow: Game of Thrones Title: Kill the Boy Season: 5 Episode 5