Do I have to go to my mother-in-law's house to get married?

My sister actually got engaged at the end of this month. Our home is far from my in-laws', so we have to take my sister and find a hotel to wait for the wedding. At that time, as a family member, I went to see the wedding room prepared by my sister's husband's family. I was very angry at that time and wanted to take my sister to my home. This can also be called a new house. It's old and still untidy. Do I look like I'm getting married?

The living room hasn't been cleaned at all. It's a mess.

lavatory

restaurant

bedroom

kitchen