Some of these don't directly mention love, but I feel like thy have some aspect of it (lost love, nostalgia, etc...)

• Closer - Corinne Bailey Rae
• Everlong(acoustic) - Foo Fighters
• Eight Days a Week - The Beatles
• She Will Be Loved - Maroon 5
• I Want To Hold Your Hand - the Beatles
• Call Me When You Get This - Corinne Bailey Rae
• Love Me Do - the Beatles
• Come Away With Me - Norah Jones
• The Only Exception - Paramore
• My Immortal - Evanescence
• Give Me One Reason - Tracy Chapman
• Love Song - 311
• Iris - Goo Goo Dolls
• Cosmic Love - Florence + the Machine
• To Be Alone With You - Sufjan Stevens
• Walking After You - Foo Fighters
• Dear Lover - Foo Fighters
• Lay, Lady, Lay - Bob Dylan
• Little Wing - Jimi Hendrix
• November Rain - Guns N Roses