A double room or two single for a couple

I am 21 years old and I'm a student of literature, italian language and translation, my (boy)friend, Mateusz, is 23 years old and he'sa mechanic and loves dealing with cars. We are friendly, tidy and helpful. We love traveling, going for walks, listening to the music, watching films and dancing. We are in Bologna because I am an Erasmus student and having such an opportunity we want to experience this adventure together! We love Italy so w hope that it's just the beggining :)