Losing our flame

My husband and I have always had a good sex life, but recently within the past few months, I feel like he doesn’t seem interested. He doesn’t really make out with me anymore, even when I try. I always have to initiate sex, and when we do kiss it’s short little kisses. My question is how do I relight the spark we had before this funk? Yes I’ve tried talking to him about it, he says he will try to be better about it, but things just haven’t changed.