Looking for advice and comfort

[PT33]

I get back later that night and my sister was having a friend stay the night and she was gonna sleep on the couch. My wife told me she should be sleeping in the guest room and I told her umm where would I sleep? She said in our room. I was confused. It was awkward, I could just feel she didn't want me in there.

The next day she was in a bad mood (usually she is on sundays cuz thats when she is home with me) I asked if she was ok and she said she was fine, but that today was the anniversary of her friends death. Over the years she had mentioned it and she was a little sad, but it never affected her like this. They were not good friends, more just acquaintances/coworkers, he gave her her first job in her career. Im confused how someone could have that affect one her now? She shut me down right away and told me she did not want to talk about it.

Even after how badly she has treated me, I still want to make things better for her and take her pain away. It killed me when she wouldn't talk to me about it.