What should I do? What can I do? We communicate by skype and IM. Sometimes I send her messages and want to talk to her to try to find out what she is doing. I already bought my ticket to Europe.

I feel as though if I keep mentioning to her that I am worried she will cheat on me that it will make it seem as though I'm expecting her to do it and that will make her more likely to do it. It also undermines the trust I have given her. This month is going to be agonizing.