I do think you have the right to take the time and space you need to heal, though. If you don't give yourself that gift then any reconciliation that begins will fail under the weight of *your* pain and anger as much as his.
You have a couple of options: just decline the next invitation or two and see what that does for you, or say outright, "I appreciate your invitations but I find myself struggling after spending time with you so I'm going to step back for a time to take care of myself." Or something along those lines.
You know not to do any temperature checking or R talks. you're just upset and impatient. Your separation is fairly new and getting all that time with him is confusing. It is a lot easier if you can back away for a while and normalize things. Take it from the Meltdown Queen.
You've been really, really strong up to now, and I am very sure that this ledge you're on is just a step up to the next stage in your healing. Do something loving for yourself today. I know for me something that helps is looking at the strangers around me and realizing one of them could be one of the anonymous friends I've made here who have been so generous in cheering me on. Remember that for yourself, because it is true.
Me42, H40 D12, S8, S7 A revealed: 7/13 Sep 4/14; Agreed to D 1/15