I need advice

So me and my boyfriend just recently moved in together.. before we moved in we were inseparable.. he always held me tight. Never got annoyed at me and just always told me he loved me. Once we moved in it was the same for like a week. Then all of a sudden he got distant and he never just holds me like we used to. We don't talk like we used to. It's like something changed.. I don't wanna bring it to his attention cause I don't want him to be like "not a big deal" type thing. Any ideas on why a switch flipped and it's different? I can't figure it out. I feel like he's just annoyed with me because I want his attention like old time. I wanna be able to