Alone
Have you ever been asked a favour by someone? Or a friend presents to you a request. Or a colleague expects that you perform a task. And what happens when you fall short? Do they show disappointment or do they show some form of understanding? If I have to guess, I'd say they are disappointed more often than not. And you? How easy is it for you to be disappointed what you expect something from someone and the person is unable to deliver? It is in us as humans to be expectant. It is also in us to be easily disappointed when expectations are not fully met.
In nature, the predators will always chase after the prey. Many times, the prey will meet a gruesome end. But it does not make the predator a mindless killer. The predator is simply responding to instincts. It has to feed and stay alive. It is simply nature's design. However, Mother Nature did not give an assurance of daily bread to the predator. It is for the predator to figure out ways to not starve to death. One of those ways is to chase after prey. On ther other hand, Mother Nature owes nothing to the prey. It is for the prey to find ways to stay alive. Many animals have evolved speed, camouflage, evasion and many adaptive features and characteristics just to stay alive and survive the wild. When animals give birth in the wild, many of those offsprings are able to live by themselves not long after they enter the world. Their survival after entering the world largely lies in their own hands.
As it is in the wild, so it is in our regular living. There is assurance of nothing. Nobody owes you anything. You owe the responsibility of your life to yourself alone. Nobody is supposed to be responsible to you. So, apart from acknowledging that nobody truly owes anybody anything, it is good to realise that everyone has personal issues to sort out. Some have it easier than others, but there is hardly a human being who does not have stuff to deal with in their personal lives. So when you are tempted to think someone is avoiding you, they just may have a lot on their plates at that time. Even if they look happy and unperturbed, they might just be at the limits of their perseverance.
Friends that you have today may wake up tomorrow, develop interest in something or someone else, ditch the friendship and move on from you. That will not make you stop living. Family members may decide to relinquish their association with you. The world will not end because of that.
If you are in a position to give, please give as much as you are able to. It is always a rewarding and satisfying experience. Giving does not always have to be material. If time is all you have to give, give it. And if you are fortunate enough to have gracious people around you who care about you and are occasionally or frequently giving to you in whatever way, please be appreciative of it. But if they do not feel obliged to give, do not be disappointed and do not nag.
In the end, all you truly have is yourself.