Grandparent rant

I posted a couple of weeks ago about how I haven’t seen or spoken to my parents in about 9/10 weeks as I’m fed up of being the first one to always make the effort to see them or message. I tried to communicate with them in a polite way about how they have made me feel not being involved etc….. All I got back was ‘if your doing tit for tat you didn’t answer my message, I can’t be dealing with your attitude’ Ive just looked back I responded to her last message to me on 2nd April. She then didn’t send me another message until 30th April asking how things are going with my pregnancy. again I responded the next day but never heard anything after that! I know she’s seen & read my response. She always makes me feel bad even when I’m the one which made the effort. She’s blames it on her treatment which she’s been having for 5-6yrs. She’s made promises which she didn’t even keep about getting stuff for baby. I feel so hurt and alone. I don’t understand why they are being like this. I can’t do much else 😭 Sorry for the rant I dunno what to do or who to speak to