It's like 2 times now, that a friend has changed the plan at the last minute which has created a lot of anger inside me. I had always planned to attend the event alone but this friend insisted that she and me shall go together and we decide a particular time to leave the house. First time she called 1 hour before and said she has been called early to welcome the guests and that I could come late. I went a little late and by that time all the cultural program got over and all I got to hear was the boring speech. Second time she insisted right from morning that we both go together for a Birthday party. She said we will buy gifts on the way and then go to the party and also that we wait for her son too to be back from his classes. In the evening she again confirmed with me that we both go at a particular time. But just 10 minutes back she called n said she is leaving early and will wait at a particular spot after buying the gift. I got so angry at her that I got further late and by the time we left the house she had finished her shopping and was asking me whether she could drop her kids at the party hall. I told her to wait for 10 more minutes for us. But there was so much rush at the gift shop and we were more late. She started calling again n again to tell that she is dropping her kids at the party hall and will come back n wait for me at the stop. She called me again to say that she has reached the hall. I was so much angry that I just asked her has the games begun and she said no. She said take your own time as the host family has not yet arrived. I know it's a silly thing but I just couldnt control my anger. I didnt speak to her at the party and was so irritated inside. At one point of time I even thought of not attending the party just because of the friend. I didn't want to confront her for this but felt kind of cheated on both occasions. Henceforth decided never to go with her anywhere. How do you handle such last minute plan changes that upset you, and also the resultant anger.