The OP didn't really go into detail, nor have they really been back to address anything. So the bf could still be another teacher, maybe from another district (who knows what he does). Whatever the case, if he's going, he's going. In actuality, at least he's known now... before the trip. As long as the kids aren't sleeping in coed situations, who honestly cares what the adults do? They're adults.That's pretty remote. If he was another teacher in the district, he wouldn't be there as "her boyfriend". He would be there as "another teacher".