What's the difference between a sacrifice and a compromise?

there have been so many instances in my life and with my friends, where we get confused between a sacrifice and a compromise. There's such a fine line between the two, that even though you think you are not the sacrificing kind, be careful cause the minute you decide to compromise you wont even know how fast it became a sacrifice. I think when we you bend your rules to fit the situation and your significant other bends his rules to meet you in the middle, it's definitely a compromise on your part and his. However, as soon as the words "can you," "will you," "you should," start entering the picture, let your alarm bell go off as no one should be asking favors from you if it means you having to give up what's important to you. Seeing the various situations in which I have personally done both, you only know the real difference between the two by the way you feel afterward. If you feel sad and happy, love and hate, smart and foolish, you know you've crossed that line into making  a sacrifice. A compromise should leave you feeling rejuvenated like you've been given the opportunity to make a fresh start with new tools and you cant wait to get things going.