Flipping from a friend to lover doesn't work in a text or email. It may seem like the easy way out, but don't do it. You will fail. They need to either see your face or feel the warmth and conviction in your voice to make your statement work.
As much as men don't want a drama queen or someone who can't take care of herself, women want a fully embodied man who has done the work on himself and is able to fill those empty holes on the inside, by himself.