Once so close feels far apart

So I’m 19 atm and at night when I’m trying to sleep an my mind won’t shut up I tend to drift into this pool of sadness about my family. I just don’t feel close to them anymore and they used to be a every weekend type of package.

I’m talking about my aunt, uncle, and grandmother on my sperm donors side

My aunt an uncle treated me like I was their kid for so long they always reached out to me an planned fun things for us to do an vacation and so much more an then they had two kids of there own an it slowed down a lot which is understandable but they slowly stopped even the simplest of reaching out to me or practically anything

My grandmother used to have me over everyweekend and would call me and send me letters in the mail and she’s stopped all contact with me pretty much so much that when I went to see her I didn’t recognize the women in front of me which shocked me because it had only been a year or so since I had seen her last (this was about two years ago now)

I just don’t know what to do because I miss them atleast the memory of them but now when I try to talk to my aunt it feels weird and distant and half the time she doesn’t even respond or it takes forever. My mom once said the people who should be in your life should reach out to you because I’m their niece an I’m there grand daughter but I just don’t know anymore. Thoughts?