First I would slow this down - too peppy for a love song. Your chord progression has been used a lot so you need
to find a fresh approach - try different grooves and basslines. Pedal point might work or a more sparse instrumental
background - all worth trying.. Another approach might be to just work with the melody line with no chordal
background and try to make it as distinctive as possible - that can get you away from forcing the melody into a chordal
box . Maybe listen to the Coasters or other groups that were so masterful at producing a romantic sound and think about
what you could use from their approach. - Just some ideas to get the muse going - in the end you can't please everyone
so you gotta please yourself.