Looking For Trouble after Friendship Potion

[thesexecutioner]

In our last game, my group had a strange situation because of some ambiguity on the Friendship Potion card. It says that no treasure is gained but the player may loot the room. My friend kicked in the door, tried to fight but was thwarted by my Friendship Potion. He then wanted to Look for Trouble, because in his opinion the phrase "may loot the room" means he can continue with his turn as though he has never fought the monster. However, I took it to mean that he can loot the room and take a door card INSTEAD of taking a treasure card. Can't find this particular situation on the forums and was wondering how it should play out?