Though there's also the scene later on in which [spoiler]Barn does indeed give in to at least passionate kissing.[/spoiler]At least that's all that we saw - and we can presume that's all that there was - but still, even at that, and even factoring in Barn's confusion at the time, it was leading Ang on.
[spoiler]They kissed, but then he pushed her away, and if I'm not mistaken, left the room[/spoiler].....what was shown on screen isn't enough of an implication to say they did any more. IMHO.
Barnabas'Bride, I don't understand your rebuttal, because it seems MB said the same thing in his response to you (quoted above). And yes, I can see where a man's passionate kiss like the one we saw him share with Angelique might encourage a hopeful woman, especially when it's followed by this exchange:
ANGELIQUE: You didn't lose control of yourself. You let me do what you wanted me to do.
BARNABAS: Very well then, perhaps you're right. So in the future it will be best if we don't see each other alone. Anywhere.
There's nothing implied here-- he admits to finding it difficult to resist her.