Yes they do, they really do ;A; Dick has all the girls at his flirting, he is a champion in that department. And he gets better when someone reciprocates it, so Eponine is really really awesome for it xD

Some day he needs to be told about Marius. That's something he needs to know because he's nosy, but also COME ON. The best relationships are the ones where you know the person longer then first sight 8|