I get this; my 16 yr old son is estranged from me; I brought him up as a single parent.
Went without to give him the best opportunities, and we had what I thought was a close, loving relationship. But, after alienation from his dad, he's cut me out and I'm just a footnote in his life
His dad and his dad's family meanwhile who never sacrificed anything in his earlier life (money, time, actual parenting) are the only things that matter to my son now.
It's months since I spoke to or seen my son. Interractions now are weird and stilted. If I face-timed him he might answer, but would make it obvious through non verbal cues he has zero interest in speaking to me by doing something else while talking. He doesn't really read any messages and responses are one word if at all
Meanwhile if he does visit me once a year for an hour, he'll be messaging his dad non-stop, or diving to the loo every 5 mins to make secret calls to his dad
This was a child, who up to last year would fling his arms round me and laugh and joke with me all the time
So, solidarity. Sometimes it just turns out like this. People and feelings change, even people you think you know well. Maybe they will come back in time