*hugs you now* I've been dying to come back and reply to you! I'm so, so happy you liked this. I loved your prompt. At first I was all "OMG, how can I do this" and then the IM idea happened and… yes. I loved writing it.
Poor 616!Tony indeed. He really has had a rough time, poor guy. MCU!Steve is really such a sweetheart. I'm chuffed to bits you liked the characterisation so much! :-) Not to mention that the IM idea worked for you, I was a little worried about that one.
*sends more hugs*