If I am understanding it correctly the issue is that the person (persona) that the person becomes interested in, differs from the reality that will eventually seep through.
When we all start dating we put our best foot forward, but unfortunately over time the real us can't help showing. Sometimes this is a good thing, sometimes not so good.

What I feel the T is suggesting is letting little bits of yourself shine through to start with. Showing the bubbly with the quiet, so that the person your with can see you have multilayers from the start and are not sideswiped after you revert to quiet, distant or any other different elements to the person they initially connect with.

It is very important that we lead with who we really are, if we want anyone to love us for us -otherwise we are simply allowing someone to fall in love with a fake version that undoubtedly will result in hurt for one if not both sides. The other person feels they have been duped and you are left wondering why you are not loved for you. Yet, let's be honest, who are you in that case - are you even sure?