Oh man. There's only one of those dungeons that I actually like, and I got almost 2/3 through it solo, and decided that I just didn't care enough. I'm sure I could have done it with enough tries... But ugh. So time consuming.
I totally respect people that do it even once, and people that do it for every dungeon are basically gods.
"we had an argument in a bar and I got up and left, then she sent the text,"
If you abandon your girl in a bar, you should absolutely expect to lose her, birthday or not. She is under no obligation at that point to consider his feelings about his special day.