Warded to Remus within minutes
Drinks in a private room don't have to mean anything other than there are no other people around. However, if I've misunderstood the situation, that's fine. It can still be just drink and lesson plans. I can't believe I'm about to say this, but there's really no reason to be afraid in being alone with me.
After all, if I wanted to kill you, I'd hardly leave this much evidence against me.