The Hollywood rom-com fairytale does not exist. Every relationship has its ups and downs, as anyone in a healthy, committed partnership will admit. However, there is a definite line between a bumpy patch and a relationship wrought with pain and negativity. While numerous studies show that a supportive relationship can be good for your health — from adopting healthier behaviors to just living longer in general — the constant stress from a toxic entanglement can attack your health in ways you may not have realized. Read on to see how an unhealthy relationship can impact your overall well-being.