It could be she’s trying to keep you placated because of the court case concerning her father. My advice would be to stop being chatty with her. If we’re thinking of it in terms of addiction, you need to stop feeding it. You say it bothers you if you go weeks without talking to her. To me, that sounds like attachment, when you should focus on being detached. Keep it simple and only answer questions pertaining to your son and keep the replies short and sweet. I’m honestly kind of shocked that you want to interact with her at all after what she put you through...
mtb nailed it. OK I think part of the reason your relationship with Mary didn't work is based in what mtb is saying here: your aren't even close to being over her yet
M(53), W(54),D(19) M-23, T-25 Bomb Drop - Dec.23, 2017 Ring and Piecing since March 2018