Is it me or him?

I started seeing this guy almost 2 months ago now, since we met we haven’t spent a day apart really. Its always whose house are we sleeping at tonight? What are we doing today? The past few nights he’s been really distant. Not talking to me all day, not seeing him all day. He’s been spending the night other places and doesn’t invite me to do things with him anymore. I just wanna know, is he bored of me? I texted him about it the other day and told him how it makes me feel like I did something wrong but he promised me I did nothing. He’s still being distant though.