I think true love is all about choices and commitment. The choice to be kind, the choice to be patient, the choice to be understanding. Obviously you need to have developed those skills, as well as impulse control, anger management, etc. There may be disagreements, but you resolve them through communication, etc. You don't expect the other person to change, or try to force them to because you accept them as they are, but you support them in their efforts to better themselves and constantly try to improve yourself too.