Mad at my roommate

So I told my roommate in advance that my boyfriend and I were going to be having sex in our room because it's our anniversary and we only had 4 hours together before he left to the air force. I said can you just stay in the living room for a bit once we go in there, I told her this a week in advance and told her which day. She said she would. So the day comes and my boyfriend and I were cuddling and she barged in twice without knocking, I didn't mind as much because we were just cuddling but it was still annoying. I then texted her could she get all the stuff she needs and not come in until he has to leave. She didn't answer me for a while even though I texted her on snapchat and messages. I texted again did you get my text and still no answer. So I walked out to see and she was in the shower and I knocked on the door and asked if she got my text and she said yes. I said okay then shut our door and put this heavy thing on it to block the way just in case even though I didn't think I'd have to. My boyfriend and I were starting to get it on with his pants down and there she goes barging in and trying to push her way past the heavy thing. I was like what the heck I asked if you got my text and said don't come in as I was putting his pants up. She said she needed to put her dirty laundry away. My boyfriend was obviously really upset and mad so we left to cool down in my car for a little bit. She was texting me basically saying I should've assumed she was going to come back inside to put her stuff away and that she didn't think we'd start so soon because we had "4 hours left". She said she wasn't going to apologize for just trying to put her stuff away. I kept telling her I told her before to not come in and took extra precautions and she still didn't even knock. She ruined my last moments for a while with my boyfriend. I'm still mad about it and she's still being pissy and sleeping in the living room because she doesn't think she did anything wrong and won't apologize. I'm really holding back on going off on her, she could've just knocked and had common decency like I've had for her when she had her friend over even though they weren't doing anything and she didn't tell me to not come in.