Sister in law problems. Am i wrong?

Qu

So long story short, we live abroad and my sister in law wants to use our apartment when we are away to come here and visit the area.

1. It is a very small apartment and I don’t want another woman staying in my house where I have my personal things especially if I am not at home. I was at her house only once to visit for 1 hour.

2. She never suggested visiting when we were here. Not even once did she suggest she wanted to come see us but she is more than willing to come and visit the country/area when we are not here. Personally, i find this insulting.

3. She never helped me with raising the baby.

4. She discussed it with my husband only and she purchased even plane tickets without waiting for a reply from me.

Am i in the wrong here? What do you all think?