It was Remus, it was really him, and his first instinct was to move toward him, to morph back into himself, and to take him into his arms.
Which would have been foolish, and possibly fatal. Luckily, although he didn't see it that way, he heard a crack, as of a footstep, and then more, as Hagrid hove into view, so he slunk away, defeated, vowing to redouble his efforts to get to his love somehow.
He would worry about the rest of it later, whether Remus really wanted to see him or not.