It was good till Crystal called
She said she was lonesome so
I dicked her down and went back home
Crystal is another girl, not his girlfriend. Ol' boy is trying to stay faithful, and is complaining about how his girlfriend is always accusing him of cheating, but her fears are clearly legitimate. Changes the whole tone of the song.
All is well till Crystal calls for a bootycall.
To help improve the meaning of these lyrics, visit "Make-Up Sex" by G-Eazy Lyrics and leave a comment on the lyrics box