D, I'm with J on this. Moving in together is a far bigger Thing than most folks seem to recognize. But there's no substitute for talking this through together. It doesn't need to come across as a criticism of him --- you'd be describing an unexpected issue you've found in your reactions. Maybe between the two of you, if you could previously each afford a place of your own, you could afford jointly to find a slightly larger space ? And develop a mutual routine that gave you both what you want, some space privacy and peace, and some togetherness and hubbub ( there's a word I haven't had the chance to use for some time !)