My wife's sister is always stating how her kids ...

Your sister in law may or may not be interested in you.How do you feel when she is around?It must be bothering you or you would not ask this question.I think I would throw some hints to your sister in law to let her know you are happy and would not be interested in another woman.Hopefully she will take the hint and leave it at that.This could cause problems if she is or isn't.Be real carefull how you handle this.Good luck

I think your sister in law is being nice and trying to be a good sister in law.

If she was trying to come in between your wife and you she would be

putting you down. Not lifting you up.

About that Sister-in-law!

Yes, of course, she has an interest in you. But what is more important in your story is that your wife - of course your wife knows her sister better than you - has not been involved. I would think that it is up to your wife to set your sister-in-law straight.

It is quite possible that there has been friction between the two sisters for a long time. But, as far as you are concerned, you need to discuss this matter with your wife and let her deal with her sister.