The lyrics describe a relationship that begins unexpectedly, when two people meet by chance and quickly fall in love. The speaker admits that their past changes may have hurt or confused their partner, then promises to treat them better and love them more. The mood is affectionate and confident, though the repeated request for reassurance suggests the relationship may still need trust and commitment.
“Love has knocked us down and scored” compares love to a force that can overwhelm someone, perhaps like an opponent winning a point. “We’ve been twice around the block before” is an informal way of saying they have experience, possibly with relationships or difficult situations. The image of a telephone line “tied right to my heart” means that even when they are apart, talking makes them feel emotionally close.
The promise “I’ll be good” can mean behaving more kindly and reliably, but it may also carry a playful or flirtatious tone. The speaker urges the other person to stop moving from town to town and settle down, so the song is not only about affection; it also asks for a steadier life together. Still, the lyrics do not explain exactly what went wrong before, or whether the partner is ready to make that change.