My mother definitely acts like this...never calls, (anymore anyway), didn't visit me when she was in town (though she stayed with family friends that weren't that far away), and doesn't email me unless it is to lie to me and trick me into coming back into the family fold, due to current estrangement.
When she is not not actively trying to contact me, she is speaking badly about me behind my back, to my brothers, whom she knows will deliver her shaming for her and then acts like she didn't know they would tell later. Apparently SHE can't be bothered with me. After much crap like this, I've decided, I can't be bothered with her either.
As far as calling and emailing me and making regular visits, my father actually was very good at this...except I DIDN'T WANT to have contact with him, due to all the insensitive, gaslighting crap he inflicts on me when we are together.
My youngest brother calls every once in a while, and my middle brother the same, though now no one really calls except my middle brother, to try and "work things out", which entails me telling him what I want to hear, and him saying it, so I can come back and the family can "go back to normal". I have him on block, so maybe I'm the one neglecting them all emotionally.
I call it self-preservation personally!