How do I fix this?

I know this community is full of supportive and nice women so I wanted to ask for advice. So today my boyfriend just moved 3 hours away from me because of family issues. His phone is off so the almost the whole day I didn’t hear from him unless he stopped somewhere with WiFi. The whole time I missed him but kept getting anxious of how our relationship will be once he’s even further away from me. We just FaceTimed and I completely fucked it up by acting a little distant by making small talk. When I said we could talk later when he said he was about to play Xbox with his sister (I usually stay otp with him when he does), he got suspicious and asked what was wrong. I told him that I just want him to get settled in and that we could talk later. After that, he texted me telling me to let him know when I get my mind straight. I apologized and told him the truth by saying I just felt a little weird that he’s further away now. I was afraid and still am but all day I was just frustrated because I really need him close to me. We’ve been in a long distance relationship the whole time we were together but he was just 45 minutes away. I let my emotions get in the way and now idk how to handle what I did. The last thing he texted me was “wow don’t let that mess up our relationship”. That was the last thing I wanted to do. It kind hurts knowing I can’t have him as close to me now but at the same time I didn’t mean to let those feelings get in the way of us. What should I do?