Chasing and flattering
Some women don't think men who chase them are cool. But as long as a man isn't getting on their nerves too much, most women feel flattered if a man pursues them.
You can go all out to show interest. If you do so, you'll have a chance to sleep with her even if, from the beginning, she didn't consider you a sexual partner. She may even be in a steady relationship with, or married to, another man whom she loves. What a sweet illusion!
You want to have a lasting impact.
She may steadily refuse you... for how long? Go all out. Tell her she's the most beautiful woman you have ever met. Tell her she's the woman of your dreams. Tell her to leave her husband. Tell her that you will marry her. You haven't slept with her yet? Never mind. Tell her that you will be faithful to her until the end of your days. Tell her that if she doesn't grant you a night together, you will never again touch another woman. Promise her anything you think she would like... or rather, like to hear. Don't worry, you don't necessarily have to keep all your promises. She might not fully believe them anyway. It's just that they sound so nice. She'll like hearing them, even if she doesn't entirely believe them. Or, after a while, she might believe them a little bit. They just sound so nice.
If you have time, be patient and persistent. You don't have to talk to her if it would be embarrassing for her. Just make sure that she knows you are around. Give her the feeling that you are really, really interested in her. But keep an ironic twist to it. Promise her so much that she can't possibly believe you are serious. It's a charming game. Smile while playing it.
You'll have your day, I guarantee it. You have a great advantage over her husband. They live together, with all the mundane realities that entails. You just meet her when you plan to.
Their living together won't always be harmonious. Sometimes they will argue, and sometimes she will be disappointed with him. She may even sometimes desire sexual intimacy when he is not in the mood, or when he is busy with his work. Sorry, my darling.
Watch out for the days before her period. You'll have your chance. She will grant it to you, at least once. And if you can give her a good time, she'll be back for more.
And then, go all out for victory. Why? Because marriage as an institution is an illusion. It can rarely live up to its pretenses. If anything, it can sometimes become a repository for people who can't have what they truly want, so they settle for what they can get.
In spite of all your promises, you won't be foolish enough to replace the man she was with until she met you. You'll leave her at a time when it will still hurt her, not you.