L. T,
I don't know how you will accept this, but you did ask for opinions and here is mine. It sounds as though you are overly busy and need to cut back on some of the things that you find not totally necessary. Find a way to become more exciting to your husband. Marriage carries alot of responsibility. It is a partnership. Men usually don't give as much as we would like, but you set expectations and you may find disappointment.
Do you know how the other woman gets in? Do you know their plan? Well, It's sad to admit but I have been the other woman in my early years, the man was not married and he had a girlfriend. I knew it was wrong to infringe and did not actually want the man for a serious relationship, but he was appealing and smart and we had a lot in common. Hey, here's an awakening. In playing that disguisting part, I found that, The other woman, be she friend or foe, does all of the little things we as wives neglect to do. She holds his hand, rubs his head and tells him how wonderful, sexy and smart he is. She feeds his ego a healthy diet of "psyco-boom" and he loves that, he needs that. She is so attentative and eager to listen to his boring jargon. She uplifts him and delights his visual stimulation. That's right, she puts on sexy nighties, role plays and is virtual eye candy for him through out the day. She laughs at his unfunny jokes and she doing all these things makes him feel like a king. Many women have been the other woman, but are not likely to admit it. It's just that with my years I am honest about my experiences and what I learned. I also learned that when we treat men the way they treat us, we cannot seem to get rid of them.(LOL!!) Funny, but true.
All that being said. You have got to examine yourself and find where your shortcomings are. We give and give so much of ourselves as women that we tend to give ourselves away. That old cliche, that the same thing it took to get him hooked is what it will take to keep him. Honey, I have been with my husband for 17 yrs. Daily I am the other woman. We are totally monogamous, because I am every woman. Try some role play this evening, cater to his eyes, and all senses. You are the his wife. The only woman and every woman and NO woman is competition to you. It may just be a friendship, but I would stand firm that they not go out alone. You can prevent some of those thoughts by being on your A game and sprucing yourself up a little. It may not all make sense. But it is worth a try. Next, pray. Talk to God often and make a church date with your husband. When you let Spirituality out, the world comes in and when the world comes in, they will create a mess! Hope you get my message. Love is the only thing that matters, love him in the difficult times and be supportive, understanding and sexy. Study that girl and see what is so great about her. Study him and find out what he is reacting to. Now you have your facts, put a plan in action and hold on to your man!
If your household is out control, modify it with love, care and prayer.
J.