So my best friend is getting married in Australia, and asked me to be the best man. The reason is that the person he met is from there. Now I'm afraid to fly, have only flown 2 times in the past 15 years. And every day since he asked me I've dreaded the idea and have been stressed. Today I finally told him, I don't think I can make it. And told him the reasons. The two other times I've flown were only 2 or 3-hour flights and I was stressed then. This will be an 18-hour flight. Now he is super upset and likely will kill our friendship. I told him why he wouldn't have a small second wedding here and I would help with the cost, but simply ignored it and said, that he thought I was cool with it. I said I thought I would be, but I don't think I can do it. The wedding date was just announced and it's a few months from now, so it's not like a last-minute change of mind. I feel so guilty, but sometimes I feel I shouldn't. I gave him a reason and offered to pay for part of his wedding here. He is used to flying and for work flies like 10-15 times a week, he doesn't understand that I can be afraid of flying. His other good friend also just canceled on him, but I'm a longer time friend, so I also feel so bad and so pressured now and feel I can't even talk to friends about this because flying is also not a big deal to most of them, and I shouldn't be afraid of flying but I am.