Yeah, I agree with Michelle.. it seems too 'sus' that he called and was all "HI!" sorry I didnt call I was WORKING.. he must have seen your pie, he's just too embarressed/avoidant to say anything ? (or yet?).
I agree with John also.. you keep saying he doesnt call.. but do you still feel stuck in teh mindset that he has to do ALL the running/calling/inviting to do stuff, because he is the one that left, so should be making the signs he wants you? Can you phone him on days he hasnt called??