I'm pissed off at my boyfriend for not wanting to be physically intimate even though we're both in a bad emotional place
Why do you think he doesn't want to be intimate?
It's always my side that wants to be physical
If you are both in bad emotional spaces you should work on that for a while. If someone does not want to have sex you should respect that.
I want to be with him and love him. Why won't he just want me back? I feel unloved. I am not sure what to do.
Sex is something personal and means different things to different people. Perhaps he shows his love for you in other ways. Be patient and caring, wait out the difficulties too if possible before being angry.