To go out of our comfort zone for someone or something we love, we first must feel comfort in our zone, and then choose to come out for the other. To sacrifice our will for someone of something that we love, is the greatest act of love if we choose it, from a regulated place, knowing we have choice and desiring to do so. 
If we don't know we have a choice, if we feel dysregulated and fearful, and we act impulsively out of fear of rejection, this is an act of self preservation and has nothing to do with relationship.