Gf was raving about a man she met in college to her friends. Calling him "daddy", being "so happy to finally have a dream about him", and even suggesting they grab coffee together. Her friends even said things like "I support girl" and "Next time I see you you're going to have his babies." I saw several messages of her just fantasizing about that man. Is this just girl talk or is this cheating? Wtf is even "girl talk" because that's what she's telling me it was.

Even after finding evidence of her asking him out she denies she was ever going to meet up because she just wanted to string him along and get a reaction from him. She says she was just insecure and that she regrets ever doing it and saying those things behind my back. Whenever we try talking about it she claims to be understanding of my feelings but says things like "Like you've never done that with your friends" (which i haven't).

I feel numb and checked out, am I being too emotional / sensitive thinking this is cheating?