Would you trust her?????

It's obvious that she has her fantasies and wants it to come true but if you don't feel comfortable which is understable because it's like cheating in a way you can't really trust her for that flirting shouldn't be with someone besides you. Tell her how you feel about it and if she doesn't accept it then why is she with you? Bacause if she really loves you she shouldn't be doing all these things because that she gains no trust from you and relationships don't work out if there's no trust and understanding. Speak with her. Good luck!