How do you keep the relationship alive when you live together?

My boyfriend and I have been together for two years and are about to take the big step of moving in together after buying a house. We have never lived together before and I am feeling a little nervous. We have spent a week together at most and we usually see each other twice a week. I am excited but also worried that we will fall into a routine and start to feel more like roommates than a couple. How can we keep things romantic and fun once we move in together? How can we avoid losing that initial spark while building a strong partnership? I would love advice from people who have been through this. Girls and guys, how do you keep your relationship alive when you move in together?

How do you keep the relationship alive when you live together?
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