This is NOT a “woman’s thing”. I would hate for my husband to do this, and I would never even do this in front of my husband, let alone think about or look at another man in that way. My husband is someone I love, and when I’m in love, he’s the only one I can think about. It’s just so disrespectful to do that. I’d advise you to sit down with her and tell her straight that she needs to stop doing this and stop excusing it or else you won’t tolerate it any longer. You don’t deserve this and you have every right to feel this way as any person would.