["My sister's husband is going out of town for the weekend and she hates being alone.", 'Aw, will you be able to keep her company?', 'Yes. I invited her to come stay with me while he is gone.']
That is very thoughtful of you. You are a good sister!
My sister's husband is going to be out of town all weekend. She hates being alone. I invited her to stay with me while he is gone.