I'd say get what you want, and if what you want is a road bike, get it. It doesn't sound like you'd be happy on a hybrid with the kind of riding you want to do.
Whether to go all the way to a race bike is another question. You might be happier with sport-touring geometry, like that Dolce you mentioned, something that has a little less twitchy steering and a little more comfort for long days in the saddle. Especially since you didn't mention wanting to race.
Speed comes from what you put behind you. - Judi Ketteler