Perhaps I went a different way with this, but I thought the guy in the song is moving far away which will cause a breakup.
“Got no time to take a picture. I’ll remember someday, all the chances we took.” They did not take one last photo or snapshot and she’s worried she may forget their unique bond.
“Gimme sympathy after all of this is gone.” She wants people to forgive her if she has trouble grieving her loss.
“Oh seriously? You’re gonna make mistakes you know. “ She is trying to remind him nobody’s perfect their relationship might’ve been a Mistake, but it was worth the risk.
“Who’d you rather be? The Beatles or The Rolling Stones?” The Beatles are known for wholesome songs like “I Want To Hold Your Hand” “Let in Be” and “Here Comes the Sun”. The Stones are known for “Satisfaction,” “Start me Up”, “ Paint It Black” “Let’s Spend the Night Together” and other songs about the sexual aspect of love. She wants to remember him both as a friend and as a romantic.