January 20, 2021 Should I forgive them?

Dear Diary,

Yesterday my cousins called me they don't call me often, only when they needs something, they asked me to hang out with them in the near zoo and obviously I said yes. I was all ready and my sister came to take me we reached there in almost 5 -10 mins. But then they said they don't want to visit zoo and want to mall which is way far from my house and my parents won't allow. So THEY JUST SAID YOU DON'T COME. They left me there and I went home.

 My mom didn't asked me much, my young brother was laughing at me but my grandma was a bit mad she helped me prepare for this like gave me money and was continuously saying take care. I cried in the bathroom for a good hour. In the evening my sister who came to take me came for something I didn't talked or even confront her she also didn't came in. Should I forgive them for this? Did they do all this purposely? I really guess they hate me..