Hi Happygirl2015
I fully agree with Inky. I would say No too if I am not comfortable with the person coming into my house. You know women has this instint that something not right may be brewing, that is women gifted hunch. And if you feel uncomfortable with this person invading your personal space, then you should not allow her to come in at all. Your husband needs to respect your feeling of your uneasiness of having her in the house. You got to be honest with your husband that you are ready or comfortable for his this group of friends to come to your place, instead suggest that you join them in their outings so that you could get to know them better and probably next time you could host a party for them when you have bonded with them. Your husband may feel happy to hear that you wish to bond with his friends rather than rejecting them outrightly.

Just to share with you my experience in the past. I always say yes to my in-law side for them to come to my place to do whatever they want regardless of how unwilling i was. I ended feeling very stressful prior to the event and feeling very miserable after the event owing to the mess they created at my place. In reality, nobody knows how you feel unless you say it out. I now say No firmly to any situation that I am not comfortable in or with anyone that i do not like to associate with. I am definitely happier now as I could control how I want things to be.

I wish you all the best.