Metro needs comment from a relationships expert on what it means to be demiromantic

A journalist on the Metro needs a relationships expert to comment on what it means to be demiromantic.

'Struggle to form more than surface level attachment? You could be demiromantic'
 

Could you answer the following questions:

 - What does it actually mean to be demiromantic?
- What are some easy ways to identify if you could be demiromantic?
- Are there things you can do to help yourself form more of a romantic connection to someone you are sexually attracted to? If so then what?
- How might people you are dating perceive your behaviour is you're demiromantic?
- Should people who are demiromantic open themselves up sooner in relationships than the regular dater to increase their chances of making that deeper connection?