I just love these questions:) here are a few dozen,.. Imagine - John Lennon Can't Help Falling In Love - Elvis Presley Tears in Heaven - Eric Clapton Candle in the Wind 1997 - Elton John Angie - Rolling Stones Love Me Tender - Elvis Presley Love Hurts - Nazareth< Stairway to Heaven - Led Zeppelin Wild Horses - Rolling Stones Desperado - Eagles Open Arms - Journey I Don't Want to Miss a Thing - Aerosmith November Rain - Guns N' Roses Dream On - Aerosmith Free Bird - Lynyrd Skynyrd Can't Fight This Feeling - REO Speedwagon Are You Lonesome Tonight - Elvis Presley Baby, I Love Your Way - Peter Frampton Wonderful Tonight - Eric Clapton Tiny Dancer - Elton John Somebody To Love - Queen Patience - Guns N' Roses Nights in White Satin - Moody Blues Candle In The Wind - Elton John Across the Universe - The Beatles Wicked Game - Chris Isaak (Everything I Do) I Do It For You - Bryan Adams In My Dreams - REO Speedwagon Right Here Waiting - Richard Marx We've Got Tonight - Bob Seger The Show Must Go On - Queen Little Wing - Jimi Hendrix Experience Keep On Loving You - REO Speedwagon Sometimes When We Touch - Dan Hill Your Song - Elton John Daniel - Elton John
Some of the good collection of rock/heavy metal songs about love are "she is beautiful" by Children Of Bodom, "Same old song and dance" by Aerosmith and "Every rose has its' thorn" by Poison. Any song from Aerosmith, Whitesnake and Poison are good.
Have you watched Armageddon with Ben Affleck & Liv Tyler? It has a few great Rock/heavy metal love songs. Also not sure if you have already given Guns-n-Roses a try. They had a few love songs from when I was a kid. Lol ( old but not that old) :-) Oh and "Poison" from around same era as Guns-n-Roses. Now I know this may be far out ( don't laugh) but I like Meatlioaf's Paradise_by_the_Dashboard_Light.