<human>: Can you condense the text into three sentences or less?

Going to try to explain this without it getting too long, but you know, everything is always more complicated than someone can type out on reddit. 

Anyway, I have been dating my fiance for over 3 years. The first 8 months of our relationship we spent a ton of time together, then after that I moved overseas for work, so we are currently in a long distance relationship. We text every day, talk on the phone a few times a week, skype once a week, and see each other 2-3 times a year.

Recently I have just been so angry about nothing. I see a text message from him and I just feel rage. I feel terrible because my responses to anything he says have been one word and short due to me being angry. I've been meditating and reading tons of articles to try to get to the bottom of it, but I can't explain it. When I am at work or not thinking about him, the rage subsides. So I've at least figured out it's something with the relationship/us. 

Currently I think part of it is I'm feeling lots of uncertainty about our future. He lost his job about 2 years ago, then went back to school and had some internships, but doesn't really go gung-ho on the job search to find something in his field. Part of me is really worried that when we move in together and get this show on the road, I will have to support him and if something happens to me he won't be able to there for me emotionally or financially. When I brought this up to him he kind of brushed it off and focused on other issues. 

I really don't know. Even typing this, I feel like that's not the ultimate source of my anger and I can't get to the bottom of it. I've tried to talk to him a few times but I think I'm so confused about my own feelings that we can't have any kind of productive argument until I get to the bottom of it. 

Have any of you just had this inexplicable anger towards your partner/relationship? What was the cause of your anger? How did you deal with it? Any advice is helpful and appreciated!
<bot>: Feeling angry at partner/relationship and have no idea why. Want to get to the bottom of it and move on, but how? What am I even angry at?