First, some combo meanings:
From Faery Godmother Fortunes:
Heart/ Key- success in love, achieving a romantic goal
From Learn Lenormand:
Heart + key (33): significant love, certain love
Key + heart (24): significant love interest, express your affection
Looking over these meanings, and even pondering on it, I can't quite see how this will play out. Solutions for love/affection? The Key to my heart? Heart-based solutions? Haha...I don't know. It's kinda funny and maybe I'm trying too hard to figure it out.
Love to all,