Needing to vent: the last day before my bf go away we argued a lot and im feeling terribly..

I'm anxious person and when i see something I don't like I can't just keep it in my heart i go and ask or try to know from my SO this usually couses conflicts because he likes to close the topic early and leave it while i like to talk things through. We're in long distance so being online is important to us. He had to go for trip no services for days and the day before it we had multiple disagreements and kind of argument because he have anger issues, although i apologized to ease things and tried to make up he stayed distant he didn't even give me a proper goodbye I asked him if he could leave it behind only this moment but he refused.. now im all sad cus he couldn't prioritize the moment but also I'm feeling guilty and like im a terrible person for bringing anything up in this day .

I want to know honestly y'all opinions since i have none to talk to.

Ps: although i know communication is the key but with situations like this i get confused if it was wrong of me to talk about what bothering me..