Umm, even if you go to Spain that doesnt automatically mean you have to go to the parties. The guy did mention the site seeing, but since the only way he can enjoy life is by being in an impaired state of mind, he wouldnt know much about that. It seems like you have some friends that would accompany you on those sort of sightseeing stuff. See if you can get more information about what you can do in Spain and plan your trip without all the parties. Then if anyone asks if you want to go to so and sos party, you can tell them you already have plans. Just saying I would go to Spain if I were in your position because you have already been to Greece so it sounds like a good chance to see more of the world.