Sacrifice?

The word for me this week is sacrifice.

What is it? what does it mean? I heard a quote today "love has sacrifice,  but there is nothing more worth it" in my nature i automatically feel like i never did enough, if i did at all. But its not fair to always be the only one at fault. Which in rebuttle i know he'd say "yep all me always me" it isnt all anyone, we both made our choices. I am sorry for mine.

Love, bg