I suspect that she is talking with another guy and may be getting closer with him. My question is do I ask about it? is it even my business? I feel like I want to know if she has another guy on her mind.
The question is do you think you are going to get an open and honest answer that you will be able to decide how you want to proceed? OR Are you going to get a lot of defensive nonsense and outrage, or even if you do get a straight answer, will you believe it?
Do you want to test the level of trust honesty of your relationship, and do you have faith in the outcome?