Valentine's mixed cd

I'm working on a Valentine's mixed cd and I can't decide if I want to make it all love songs, or have more of a message of love. Should it be slow or fast paced songs?

I do love this Glee clip of Gym Class Heroes, "Stereo Hearts".

Here's what I have so far:

L.O.V. Fitz & the Tantrums (sweet)

It's Good to Be in Love Frou Frou (sad but pretty)

Flightless Bird, American Mouth Iron & Wine (strange but beautiful, and I bet you'll recognize it from a popular movie)

My Baby Just Cares for Me Nina Simone (possibly too sappy)

1, 2, 3, 4 Plain White T's (ditto)

The Weight of Love Snow Patrol (love this, but doesn't go with the rest of the songs...)

In the Sun She & Him (happy tune, sad subject)

Human Nature (Glee Cast Version) PERFECT

Hip to My Heart The Band Perry (super bubblegum cute)

Sexy and I Know It (Glee Cast Version feat. Ricky Martin) too silly?

Love On Top Beyoncé (one of the songs that inspired me to make this mix)

Love You Madly Cake (one of my favorite love songs)

My Funny Valentine Miles Davis Quintet (perhaps too slow, but another one of my favorite love songs)

What do you think?