T33 Its not that you are ignoring her, but you have been fired as a H ... not by choice ... so look at it this way, you would not remain on call for a company who fired you.
Another thing about the A-hole comment earlier I meant to touch on. Its not that you are being nasty doing this ... kill em with kindness approach, but also with a 'I am enjoying my life regardless of what you do' outlook. You can do this easily with zero A-hole attitude, but certainly adopt "I am a strong confident man in charge of himself and his emotions, I am the prize" swag.
Again... use the "What would Clint Do?" approach ... you have to start changing, as hard as that sounds it gets even trickier when they test you .. and they will test you. Time to really focus on changing into T33 2.0 my friend ... you can do this ... I did and am much better for it, regardless of M or no M as I actually enjoy my life, living it and being happy without worrying 'does she approve, will she get mad, am I sleeping on the couch?' ... most liberating time of my entire life and I am thankful for the journey.