You did not mess up anything, once you manage to unlock an Act 1 romance scene long before the camp celebration event this is what happens, because there is only one noteable romance scene for each companion in Act 1 and its like a way of reassuring the player where you stand in the spectrum of potential relationships.
So what happened was that had you not been able to unlock it so early, you likely would have done so during the camp celebration scene instead granted that approval rate would not be horribly bad.
I hope this clears it up for you.
