I think the two things are not related. Waiting a month, travel issues etc all that was up to you, you didn’t have to do it if you didn’t want to. However once you meet and one side does not want to continue there’s no reason to force a second date. And btw if you wanted a second date you should make sure you have a commitment before you travel.
I’m curious what you would say if it were reversed and YOU didn’t want a second date. I’ve been pushed to go a second time when I didn’t want to and no ‘miracle’ happened on the second date. Just a waste of time and energy.
‘Do I have the right to be upset?’ Silly to carry it around. Just forgive and forget