The concept of "unconditional love"

This New Year is really I will never forget, not because of the joy it brings me. But how much pain I am feeling deep in my heart.
It’s the 9 of February today; I was waiting for my god brother’s arrival. I was hoping everything will be back to normal after we have some misunderstanding few days before New Year. I bought him a $300 Asics voucher to get him the best track shoes he need, but never did I expect this issue lead to so much unhappiness. He return the money to me and requested that I shall never spend any money on him anymore. He never spend so much in his life to buy a pair of shoe for himself, it must have really hurt him a lot. We argued about this issue and never did I expect, this issue actually ruin my new year.
Previously before we argued, we have actually agreed to catch a movie on the 9 of February. But it did not happen… he still came over in the evening today. But it was really just for a short while. He got his washed running singlet from my cupboard and left. Claiming that he is meeting a friend for dinner.
Seeing another of my close friend at the door, I finally understand that he is meeting him for dinner. On their way to dinner, they really look so close, I really feel so outcaste, I am like a total stranger. Next, we were actually need to take the train to somewhere for dinner, I was so careless that I actually forgot to bring my wallet along, knowing that he should have an extra EZ link card, I requested from him. But he said that he only brought one of his EZ link card along. However, just before I was about to purchase a new card, he actually claim that he found the extra card in his bag, I really makes me feel that I am not welcome…
He took out his new I pod mini from his bag and said that it’s a present given to him from a friend and he took one day to learn how to use it. After hearing this, I am really very depressed and shock, how can it be so unfair? Why can he accept an I pod mini from a friend, a t-shirt from the friend that we are now together with? And yet totally reject my present? This is so unfair.
During the journey and during dinner, we didn’t talk much; I was watching them talking more than myself talking. Never did I expect the present to elevate into such a horrible issue. The feeling of unfairness captures my heart, the feeling of loneliness haunting me. I feel that I am being betrayed, by my best friend. How can the world be so unfair? Why is it that my present is not being accepted?
I sincerely question my concept of “unconditional love”. Am I doing the right thing? What is the concept of “unconditional love” again? I have this crazy idea of getting the shoe back, and returning him the money, but I need a lot of advice, I need to know what the right thing to do. I want to reverse time so that nothing bad had happen before. But is it possible? “Unconditional love” is to give without asking, but that is not enough. The real form of “unconditional love” is perhaps to give what is needed and yet without hurting the other party. I really need so advice…