Hi Rosie,
I think most adult children, sons especially, are self-absorbed, trying to find their ways through life.
I do have one son who phones me frequently when he's driving his semi and needs to talk to someone, but when he's off work, with his friends, I am ignored. I accept that. I'm glad he has friends.
I rarely ever hear from my other adult children except the one I live near. She and I get together at times. She's the one living in a school bus now. Two weeks ago we had dinner together at Dockside, a nice restaurant with a great view of the Lake Coeur d'Alene marina. Then she invited me to go to her church with her and I did that a few days later. Haven't seen her since then, and she's not one to phone every day.
I've come to accept that my adult children don't want to spend a lot of time communicating with me. It is great that they have other interests. I wouldn't want them to be dependent on me in any way at this time in their lives. I have the one who won't talk to me at all, but also (lucky me) four others who do talk to and occasionally visit me.
I think it is key to develop our own lives and interests, live our own adventures, and not depend on them for affection and attention. There's so much more out there and it is time to go find what else life has for us. I can't wait to get on the road. If I were a cat, I'd be at that point where I was leaning back a little, getting ready to spring forward. I'm in a serious condition of anticipation.