My dad is very close to finding out about my political beliefs

I'm in college right now, so I've been able to keep it pretty well hidden, but I always worry about my dad finding out. He is very liberal, but not TOO liberal, in my opinion. He is NOT the "I'm so fucking triggered" type, but he is nowhere near right-leaning. He is VERY outspoken about his beliefs on facebook and twitter, and he never fails to NOT mention points that counter his perspective. So, I have reason to believe that if he finds out about my political leanings, he'll never talk to me again.<br><br>About two weeks ago, I had to get up at a time I don't usually wake up at and my dad was already up and doing things. He asked me why I was up so early and I told him it was because I have some homework to do. He said "ok, well, don't be using that PC in there, I'm using it to stream". I said ok and went to bed for another hour. When I finally got back up and was going to go to my room, I saw that he was using MY pc to stream. I do have some political leanings written down on a sticky in one of my folders on my desktop. It could be bad if he finds it, but he doesn't even know that it's there. I'm just wondering what the hell he was using my pc for instead of his own. He is still using it today. Am I just being paranoid, or is he trying to find out if I'm a political extremist?