To me all of this about taking the high road, being stoic, resolute, diplomatic but firm. I also think you can be this way but still show her a path back. I still don't initiate conversation but when she does I am a little more interactive, if it is informational I now respond with a TY vs nothing at all, when we are together I will initiate a little general conversation, I try to be warm and happy. When she is talking to me I find her leaning into conversations at times and I will do the same.
Yeah I need to warm up a little and just change it up. I think it will be good for my own personal growth as this is not the kind of behavior I usually engage in. Gotta stop cutting people off at the knees and walking away lol.