Only unless you see it. You maybe suspicious for nothing.
She is not your best friend if she slept with your husband. Like any relationship a good one should involve trust and loyalty and your friend has taken full advantage of you and hurt you very deeply. Good friends do not do this! Even though the responsibility lays on your husband's shoulders because he should have never slept with her, both are at fault. Unfortunately and sadly to say you have been hurt twice over by your husband and best friend. There are no excuses! It would be wise of you to get rid of your best friend and tell your husband to go stay somewhere else for a few weeks so you have time to yourself to decide whether you want him around or not. This will also give him some time to think and hopefully he will have learned something by cheating on you and you can save the marriage. If you decide to stay together he will have to work hard at gaining your trust again and be sure you let him know that.
I know there will be people who will tell you to mind your own business, but we're talking about family here, and in my opinion, family is always your business. I think you should tell your sister. Friends will come and go, but family is for life.
Your best friend is not your best friend at all because if she was she would never hurt you in this way. She did so because she can and some women are jealous of their friends if they are married. Also when your best friend is around both you and your husband she may have fallen in love with him. Both your best friend and husband are to blame, but mainly your husband as he could have formed the word 'no' at the very beginning and chose not too. You would be wise to get rid of your best friend and let your husband know you are not putting up with him cheating. Good friends simply would not do this to hurt another friend.
How can he keep a secret from you that is about you? If it's about you, you must already know it. Not a best friend or anyone can make him do anything. He chooses to do whatever he does. He must not be very good at it if you know he is doing it.
You already know two wrongs don't make a right so the best thing to do is let your husband know about his affair and that his friend told you and is now interested in you. Be careful of gossip! Communication is the best skill anyone can have so sit down and calmly discuss this with your husband. It is also up to you to make it plain to your husband's so-called friend that you are not interested in him and stay clear of him. This is no friend of your husbands because he is hoping to have an affair with you behind your husband's back.
The big problem here is that you have a husband and are in love with someone else. I would worry about that issue more than the possible affair with the friend.
You don't say if you want him to be or he is or how to help that along. In my opinion your husband should be your best friend and you his. This isn't to say that you don't still need a girl friend to talk certain things over with.
Your question is too cmplicated... I can't even figure out what you are asking.
No she has been faithful through her courtship with Dave and her marriage. She don't know he is cheating on her with her best friend Lauren.
Maybe. Depends on how observant they are and if he brags. ANSWER: That will be hard to predict. If your husband's friend knows you to, it will be dangerous for your husband to confide to his friend, let alone be seen by him. But there are some married man's friend who knows but not with much details. If this happens, your husband's friend will be avoiding him.
If she/he is your best friend she will always support you in everything you do.
My brothers answer: Slap them around the face and say "do you want my husband?" Apparently it works