Hasn't said I love you

He asked me to move in with him when his roommate moves out in December. He asked me to go out of state with him to visit military friends. He talks about things like Thanksgiving 2018. He wants to buy furniture with me. He lets me rearrange furniture in the house. I sleep at his house every night. He involves me in everything. Why hasn't he said I love you? He says he cares about me a lot. Could he be waiting for me to say it first? Could he be nervous that I don't feel the same? I feel like it's obvious I do. Or maybe he just doesn't love me? We've been together 9 months today.