‘Heart to Heart’ by Mac DeMarco
This song is worth every bit of the hype that it has received. It is sweet and lovely. It talks about being so in love with someone that you view the time you did not know each other as upsetting. DeMarco talks about loving someone so much that you see any time you did not spend together as wasted, while also promising to work harder to make up for it. It does not get more romantic than this.