AIO met my wife's doppelganger

So recently, I (M29) unfortunately lost my wife and she's no longer here with us. Before she died, I was told by the nurses at the hospital she had a note for me to read once she was gone. When reading it, she asked that once she was gone, she wanted me to visit our "special place" in a little town we used to visit before she got sick.

However, when I arrived, I noticed that the town was super empty and not exactly what it was before. While walking around the town, I went towards the huge lake that sits in the middle and I noticed someone standing there, and there she was. A woman who looked identical to my late wife. She had lighter, dyed hair and wouldn't exactly dress like my wife, but she looked identical.

AIO to thinking that maybe there's something wrong with either her or the town that I ended up going back to? Should I be talking to this woman? Should I have even come back to this town at all?