need some advice?

my mom who i dont get along with very well anyaway,called today and told my husband that has of now she only has 2 children and 2 are no longer hers.and im one she has written off so to speak all because i dont call her constantly,she could call me and because i dont go see her,she lives 2 hours away and hasnt been to my home in almost a year because she says its not good enough for her,i have been to see her several times.she made it clear that when she dies only 2 kids get anything and no im not one of them,she said that over a year ago.shes mad cause i didnt attend my aunts memorial service,i was home in bed very sick,she knows that.my question is should i call and try to talk to her or just say forget it.im 43 and been dealing with this out of her all my life,i dont care anymore.should i call her or just save myself some heartacxhe and tears,again and just walk away.it hurts alot less to do so but i feel so guilty,she causes these guilt trips,how do i stop her from doing it to me