The compatibility between you and your partner can make or break a long-term relationship, and according to matchmakers, there are 15 incompatible qualities that are very likely to end a relationship. “There are some obvious ones, like not wanting the same things in life, lifestyle choices in terms of travel or location, and relationship style (i.e. monogamous versus polyamorous)," professional matchmaker, Melody Kiersz, shared. But there are some not so obvious ones too. Here are 15 incompatible qualities that will most likely break a relationship, according to matchmakers.