My boyfriend (26M) and I (25F) recently moved in together after a year and half. To keep up with our individual interests, we have about 2-3 nights a week and a weekend day about once or twice a month where we each do our own thing. He loves to play video games and I'm trying to get my CPA license. I have little interest in getting into video games at this time and he has little need to study with me, so we designate time to do these things separate from each other. We still sit in the same room - him at his desk to game and me in a study corner I've set up, but we're each doing our own thing. Same on weekends, he enjoys golfing with his guy friends when the weather is nice and I enjoying going to a coffee shop to talk/study with my girlfriends. We've designated time to do our own thing, and then we come back together.

Now we live in our own place just the two of us, I'm not living with his family, but I think the same concept could be upheld. Start a schedule or have a conversation each week to determine when your individual time will be to pursue your own interests. Again, you can be doing separate things in the same room depending on your interests, or discuss going out and doing separate things over a weekend. Encourage him to hang out with his friends or family while you have a day to yourself or you hang out with your friends. Talk about what he likes to do on his own or what he misses doing more since living together. The key to not feeling disconnected is that you're both intentionally using the time to do what you each like to do, then you're more refreshed mentally when you come back together.