BEWARE, YOUR RELATIONSHIP CAN CHANGE YOU
You can't change the people you're in a relationship with, but the relationship can change you. Even the Lion in a cage adjusts and adapts to the cage. It becomes the cage and the only thing that shows it's still a Lion is found just in its eyes. Even its roar moves from scary to entertaining.
The cage can change a Lion and the only thing that can revive the Lion is either it is set free or it breaks free, and the latter is only (usually) possible if there's an inspiration. If not, the Lion becomes one with the cage. The cage becomes the normal of the Lion - its habitat.
Every coin has a flipside. If you haven't discovered your flipside-personality (more on this later), then you haven't been pressed enough, and if you're wise enough to keep avoiding that press, you will live peaceful, productive and profitable.
"Man is a product of his environment, and his conditions" - Karl Max et al. Be with people who bring out the best in you and not the ones who press the worst out of you. It's a choice you must make, no matter how attracted you feel to those people.
Love and respect can bring out the best in anyone, no matter how crude they are or appear to be; Abuse and disrespect can bring out the worst in anyone, no matter how decent and cultured they are or appear to be. This is same with manipulation, obsession, insecurity, arrogance, ignorance, unwillingness to correct, disregard for process and the chief of them all - family backgrounds and influences.
The fact that only one party is willing to try at mending breaking walls makes it even worse. If both parties involved will not commit to changing lanes for the better, a relationship is capable of changing even the best of us. Don't allow a relationship make you become less than you are. No one is worth the erosion of the very values that guide your living and the creed you have built for your path. No relationship is worth your life.
So I tell people, "hold on till there's nothing to hold on to, but you must know when the time to stop holding on has come. If not, you'll keep trying to save what deserves to die, till it kills you."