Just found this out not sure how I feel about it.

My moms first brother got marry and first wife was in my life un til. I was 5. Then they went their ways and both got remarried. . I was told today me my sister and mom is going to see the first wife this weekend,

I have seen not her for over over 25 and do not remember her since she left when I was 5. Part me want to get to know her but part of me is not sure about all this.

is it normal to feel this way? How can make this more easy on me?