If you're tripping with good mates (which it sounds like you were) then just say to them that it feels like you're being left out a bit and its sending you on a bit of a bad trip. They'll understand and join you in.
Also, try playing a game of Twister or even Monopoly when tripping. Twister fucks your head up majorly (expect to see your arm going through someone elses, lol!) and Monopoly... well, trust me, it's fun. I saw people walking across the Monopoly board, going from house to house, driving in the car and getting attacked by the dog.