<human>: Condense the text into a few key points

I have been with my bf for 5 months now and everything has been amazing. We are very happy and have had no real problems so far.

So to get to the point, we spend a lot of our time together but this week he has asked for some time apart so he can focus on some school work. I obviously agreed and am fine with spending time alone. However, he has just told me that he is out tonight with friends and it has really upset me. 

I've been ill all week which is partly his fault and would've happily sat with him while he worked as I did all evening/night monday just for the company but he chose to go out instead. 

Am I right to be annoyed? If I'm being unreasonable how do I work to calm these feelings for future situations?
<bot>: Bf went out after telling me he was staying in to do work. How do I work on not being jealous of him spending time with others?