Love / Advice on a Polish girlfriend who suddenly stopped contact. [32]

Im an English guy. I was dating a polish girl for about 3months. And I've never dated somebody so beautiful and down to earth. I would definitely choose polish women over english any day. Anyways I was dating this girl and we were hitting it off bog time. After a few dates we were kissing, touching and feeling holding hands etc. We were always talking and texting and sending intimate messages. Then about 3 weeks ago she stopped contact. She was off to Poland for a week, she messaged me apologizing for not talking but didn't want to explain why. But would really like to see me when she comes back. She has been back a week and I have messaged her a couple of times. But she has never replied :s. Can i get the polish woman's perspective on this? because it's really confused me.