[OregonToSoCal]

She's testing you to see what kind of reaction she can get out of you. The last thing you want to do is call her out on it, act jealous or really affected at all. You can either ignore what she said altogether and continue on setting up a meet where it will be easy for you to bang her or treat it like any other shit test and agree and amplify the hell out of it. A sample of that would be "how cute, it sounds like true love" and then move forward with making plans with her. You want to frame it like anything she does with another guy is trivial to you and mildly amusing.