Sometimes the timing is important. I knew someone, but was not at that time a specific friend, who had a little boy, who was affected by the rhesus negative thing, as a second child and it was not picked up So he was very disabled and cared for and loved by friends and family and I knew that she was usually doing the movement therapy , where you move the patients arms and legs etc. at about 11am and at 4pm .
When he died very suddenly, from an infection of something else , not only was there the grief, but those times of day were worse for her. I saw her on the street about 3 days after the little boy died, and went across to say how sorry I was and that he would be missed by everyone. Then after the funeral and all the attention, had died down I tried to watch the time and so I would invite her for coffee, or drop in about 15 minutes before those times or ring to see how she was. I did not mention that to her, and knew that it would not stop her being aware, but hoped it might make things a little better on that day. for her.
Over time we became friends and did quite a lot of things together. It was only when another friend had a bereavment , and I was saying that I was going to go across to tell her that I would be free on tuesday am and thursday pm if she wanted to be driven to anywhere or I could get things for her, as she didnt drive. that this lady told me that I had been the only person who had gone across to speak to her deliberately, when she had seen people crossing the street to look as though they had not seen her, and even worse some people had actually said it was a blessing in disguise that he had died . How painful for her to have people thinking that because he was disabled that he would not be missed in every way.
So the timing could be a specific thing like that but also I know as a widow myself , there are times I am fine being on my own, but if I hit a low patch, weekends can be very lonely, as people naturally are out and about with their families, and busy, but even a phone call on a dark evening can lift your spirits, and as others say, a definite offer of "would you like to come swimming with us this saturday, " rather than come swimming with us sometime, is really appreciated.
I know this could be redundant these days, with emails and phones etc, but if I knew someone in hospital for a little while, I used to get two different boxes of notelets and envelopes. and put half of each in one box. If there were 6 I would put 4 second class stamps on envelopes and 2 first class. Then I would give them the box, so that could write little notes of thanks or whatever and as the stamp was on them, they could ask anyone to drop them in the post for them. There was a rather crafty secondary reason, in that while in hospital, a very few words of thanks and saying how you are is seen as totally satisfactory and you dont have to make contact with everyone straight away. You can also give yourself a day or two at home before you get any visitors, if you say you are not sure when you are getting home but will contact them when you get back!!