Do you think this guy has a strong dominant hold over me?

I'm in a dominant/submissive relationship, and for the most part it works really well. I don't mind being submissive. But every time I screw up, he won't talk to me. Usually it's over some kind of argument, and could take him months to get over.

Recently, I was upset over some things that have been building up, and out of anger broke it off with him over text. Afterwards, I regret the decision, and realized it was an over reaction, and misunderstanding, and have sent a few texts, and a phone call, but he's not responding. He's done this before when he's gotten mad at me, and ignores me. Basically I asked if we could talk, and told him I felt my decision was extreme. He did this another time to me when he got upset over a comment I made, and didn't talk to me for five weeks. It was minor, and wasn't worth being mad at me over for five weeks. He cures everything with sex, and the last time he didn't talk to me I had to send him explicit messages, and then he responds, and everything is fine again. I don't have a problem doing that, but asked him if that's what he wanted from me again, and he's not responding. It's been a couple weeks now, and sent him a Merry Christmas today text today, and no response. Is this his way of punishing me? He's the type of guy if he truly didn't want something, he would let me know. So it leads me to believe there's more to it. When the relationship is going, it's going really well.