Is the novelty of our relationship wearing off? Does it happen to everyone?

Talk to him and save it! Tell him you think that maybe you're not appreciating each other as much as you used to, give each other some time to miss each other and you'll be so much happier to see one another and the cuteness will come back :) every day when you wake up, think of everything good about him, and your fondest memories and ask him to do the same about you. By the time you've thought about even 10 of them, you'll be missing each other like crazy and then you'll be happier when you see one another. Try it out, it worked for me :D Good Luck!!