Ever been in a relationship where you or your partner weren't wholly invested? I can bet that the relationship probably didn't survive. Though difficult to discuss at times, the reasons why the partner isn't engaged should be openly communicated. Keeping those feelings bottled up will only breed further bitterness and animosity. Otherwise, finger pointing and passing blaming will invariably ensue, potentially putting the relationship in serious trouble. For a relationship to survive -- let alone thrive --it's either all hands on deck, or you can kiss the relationship goodbye. It goes without saying that relationships are no walk in the park. In the worst cases, they can be emotionally draining, eating away at our happiness and well-being. And when a partner isn't fully committed, it isn't that hard to tell. They withhold affection, are often combative, and prioritize their needs and wants over their partner's at every turn. When the other partner's...