Want to love my husband like I used to. ?

My Husband and I have been together for eight years. Married for only six months we have a three year together. I love my family but I have a hard time looking at him the same way I used to when we started out in the relationship. I've flirted with other people and that's as far as that went but I've had thoughts of infidelity. I don't want to have an affair, however every time I bring up that we have a problem he never wants to discuss it. He either says there is nothing wrong and that he's stayed the same since we've been together, but i am the one who changed. But aren't couples supposed to change together in a relationship? I've read that half of all couple separate after a yr of marriage I don't want to be another statistic.