This is incredibly subjective. YOU think she's "physically superior" (whatever the heck that is) but are you the final arbiter of that? Nobody is. She is. You are. That's all that counts in this calculation. Your husband finds both of you attractive, and very obviously so. Need it matter any more than that? With all respect, and I mean that, women get seriously wrapped up sometimes in society's heavily pushed idea of 'western beauty'. The closer you look to the cover of Cosmopolitan, the more superior you are. It's a false god, a lie, treachery, and insanely harmful to women young and old alike. YOU are better than that. From your posts here, knowing who you are and what kind of person you are in as much as a person can through eConversation, I would date you in a heartbeat if I could. Get over yourself! You're amazing
Don't take this as negative criticism. Please. Understand; the cashier did nothing. I know it hurts, but s/he did nothing. It was entirely your reaction that created the issue. Plenty of people mistake relationships. I have a long term friend who I used to date many, many years ago. Whenever I'm with her and it's just the two of us, people automatically assume we're married. People do that whenever there's two people of opposite sex who are adults and doing something together. It's how our society behaves.
DING DING DING DAVID AND PETRA FOR THE WIN! This is _wonderful_!!!
I frequently say that logic and emotion have nothing to do with each other, don't speak the same language, and can't convince the other of anything...yet they exist in the same person. Logically, you know David loves you dearly, would never leave you, and is absolutely devoted to you. Emotionally you're going nuts trying to calm fears.
You know, when you communicate your deepest fears to a person you love, you gain a greater closeness with that person. You should make it clear you're not expecting or wanting David to back off from Lora or vice versa. I would communicate that you're having a weak moment and need love and support. David proved you do by your reaction to his kissing you and telling you he loves you while he was having sex with Lora.