Cancel dating because didn't want my self selfish.?

Yesterday, supposed i have a date with my lovely lady (2nd time), i was prepared very early and i was ready to met her. Suddenly she got urgent matter to attend at her office (required her to travel for hours). With good faith, i ask her to reconsider that date because i didn't want her to tired. But she so angry at me till now. I'm really love her and i'm feel drowning and can't do any thing.Please advise me what to do?