<human>: Can you provide a brief overview of the text?

Boyfriend and I have been together about 3 months. We were still in the honeymoon period when he said some things that made me feel unwanted and I replied thusly with many hurt/angry texts. He said it was uncalled for and I apologized for going off on him. A lot of small things that irked me about him had built up and it came out in a rush. 

Since then, I've apologized and he said he forgives me.

Now boyfriend is away from 3 weeks for work as he is in another continent. We haven't talked much since he left.

I send him little "Hi how is your day?" and cute little messages. He doesn't really respond. But I am able to see he is online and just not messaging me.

Should I ask him why he is not talking with me? Should I just ignore the distance and wait for him to contact me? He is posting left and right pictures on Facebook so obviously he has internet access.

I am a bit hurt that I told him,"It has only been a week and I miss you!" His reply: "I miss [his dog]."

He is a bit emotionally constipated and I am very vocal about my emotions on an hourly basis so I don't know what to think.

Am I being paranoid at the lack of communication with me? Is this a tactic to fade out so he can break up with me?

(And yes. This sounds whiney and petulant for a grown ass woman but I don't have much dating experience or that many close friends to confide in so I must ask internet strangers).
<bot>: Boyfriend hasn't been communicating with me since he left a week ago and what little communication is done is stilted and feels forced. Is he emotionally distancing himself from me and what should I do to rectify this situation?