Boyfriend seems distant...

So lately it seems to me that my boyfriend seems distant or maybe I’m just reading too much into it. He doesn’t really text me through out the day for the past couple of weeks. I do just to check up on him. I do that 90% of the time. I feel like I have to text him first in order for us to text or talk on the phone. It’s like I can feel it in my heart that something isn’t right about him.. I don’t want to accuse him of cheating or anything.. On the phone last night he usually talks a lot but he was kinda quiet. I asked him what’s wrong and he said “I’m not in a talking mood.”