Girl Cold Texts For a Hook Up A Year Later

I went on a date with a girl about a year ago. We hooked up but didn't smash. She was cool, and I liked her. Long story short, I went travelling not long afterwards, and she did too, so our schedules didn't align and texting fizzled out. No contact since.

Cut forward to last Friday - I woke up in the morning to her inviting me over at 1AM the night before. I sent back "Hey (name), been a minute." No response since.

What's the play here? I'd like to see her again. I figure she's probably embarrassed and I need to give her a soft landing for it.