No, there's not always a price.

You needn’t feel guilty if your choice is self-happiness. Any real friend would want this for you. Nor can you hurt another by choosing your own happiness, unless they choose to be hurt. Breaking someone’s heart is not a violation if it would break your heart to stay with them. Feeling guilty is also a choice. If there are other considerations in the relationship, however, all of them must be weighed and “adjustments” might be made where necessary.

Of course, it’s not really possible to choose a happiness that “violates” another, under such circumstances your choice wouldn’t really make you happy. But then the term “violate” has different meanings to different people; the code to follow closest would be the one in your own heart, taking all things into consideration, NOT someone else’s heart.