Love is a presence that exists everywhere and extends everywhere. It radiates. It flows. It overcomes all separations. It does not and cannot belong to any one individual without simultaneously belonging to everyone. Nobody can put a wall around it and deny it to everyone else.
So if you want to experience love, you can't do it by locking love in a box. You can't do it by being absent of love yourself and expecting someone else to give their portion to you. Love it not limited and finite, or lacking or scarce. It's not like some kind of substance or material or object or commodity that someone exchanges for something else. It's not money used to buy a favor.
The ego believes that if you give something, you will lose it. It thinks that giving produces sacrifice. That you're going to be worse off, and have less, if you give. And especially if you share, there is no way to share with anyone without loss.
To the ego, sharing doesn't exist. It doesn't see how you can share, in any way, without diminishing what you have. And it's enacted this belief in the way that all physical 'forms' appear to behave.
If you want to share your apple, you're going to have to cut it in half and give half away - sacrificing half, and now you will only have half an apple. And you will experience that in the ego as loss, and unworthiness of having the whole. You might think you are sharing the half in kindness or generosity, but to the ego you a secretly jealous and bitter at having 'taken a hit' for the sake of someone else.
And then, to the ego, this form of sacrificing becomes equated with giving. It says, if I give half of this apple, and I do it in spite of the fact that I believe it is a sacrifice, then I am doing some kind of 'good for others'. This then leads to guilt that you are not giving ALL of what you have to others, and that even more sacrifice is called for. Ultimately it would have you give all of your apple to others, and having nothing for yourself.
That is the culmination of its belief system - that you are left with nothing, in total sacrifice and loss. Such is martyrdom. Such is what we commonly think of as 'giving selflessly' when in fact it usually is the ego sacrificing. To the ego, you should just give everything you have to others in order to be 'good' so that you'll meet God's graces, which is bullshit. It is a death wish. If you still have an ego and you are giving in this way without giving equally to yourself (receiving), that's not being a saint, it's being a martyr and an idiot. And it's also not what giving means.
Where in the ego's form of giving is there anything other than sacrifice? How in the ego's world is there anything even remotely similar to real sharing, other than loss? How can the ego give without losing what it has? It can't. Because the ego's idea of what it HAS is an illusion, a false value, and its idea of sharing it is the same thing as NOT sharing it. To the ego, sharing means posession and a transfer of ownership.
Real love is not like this. Real love does not diminish when it is shared or given. Real love doesn't call for sacrifice. Real love doesn't give give give, endlessly from your ego self, in the guise of some kind of 'atoning' or being 'selfless'. Real love cannot be owned by you exclusively, and you cannot give it away without you keeping it. Real love can't exchange hands and be in one place and not in another place at the same time. Real love doesn't leave you empty and lifeless. Real love doesn't ask you to be a martyr or to please everyone else except yourself.
Real love is like a giant vast ocean of love. Love's rule is that you can share in it by opening up to it and allowing it to be in you, but you cannot possess it or own it exclusively. You can participate in it and enjoy it and experience it, but this does NOT prevent others from doing the same. And there is an infinite supply, so there is no way you can have it all to 'yourself' and deny it to others, nor is there a need to get it FROM others because they too have their own access directly from God.
So unlike the ego, where you must 'get' love from others, because you think you lack it, you can't actually experience it even if you could get it, because you're trying to deny it to the other person. You want them to love you, sacrificially, by giving you what they have so that they don't have any left. That bleeds them dry, just as you trying to be an ego saint bleeds you dry. The only way you can experience love, is to get in line with how God has arranged things.
Simply, as ACIM says, "to have all, give all to all". Which means, to experience love fully, fully GIVE LOVE to everyone unconditionally, by EXTENDING what God has given you (unlimited love). In this you receive love from God in unlimited supply, and you extend it to others. But notice this key point:
If you do not extend the love to others, YOU cannot have it either. If you do not radiate the love to others, YOU cannot feel its radiance. If you do not SHARE love with others, YOU cannot share IN it either. Love has to be shared to be experienced, otherwise it is stationary. It needs to be extended and amplified to be what it is, like a radiant shining light. It has to shine outward. So you need to shine it outward, not from a limited supply of your own, but from God. Extend God's love. Extend God's healing miracles.
God... help me to love [person's name]. Help me to extend your love to them and see them as lovable.
You will then feel love in your heart, for the other person, and you will feel the love and share in the love. It is the privilege of the loved to be loving.