Be honest with those around you, including yourself. If you have a feeling follow that feeling. We often become entrapped in relationships because of convention and insecurity , learning the ways of our parents. On a deeper level everyone we meet reflects a part of us, we define our thoughts and feelings about ourselves though others and the most probable reason we are in a relationship is the need to work through issues, others reflect qualities of us. The feeling of `stuck` is because we have outgrown the relationship ie. we have worked through all the issues that appear relevant, but because of convention children, relatives and finances we work through the pained routines without `the proper` recognition from the other partner. In so doing we educate our children into the sufferance of marriage with all its trappings. Thus completing the circle of family life (lies) - `the happy family life`. Be honest with yourself and your feelings and follow your heart.