1) Lack of Communication: Communication is key in any relationship, and it is especially important in a romantic relationship.
2) Different Values: Different values can cause significant conflict in a relationship that may not be resolvable.
3) No Shared Interests: Shared interests are an important part of a relationship. Lack of shared interests may be a sign your relationship is not sustainable.
4) Constant Conflict: Constant conflict is a sure sign that you and your partner are not right for each other.