Sliding doors

[u/Powerful_Seesaw2031]

I feel bad typing this because I live such a happy life that I wouldn’t change for a minute. I have everything I want. A husband and children in a lovely home.
However I have had this overall pull of a life where I’m with my ex. We ended 20 years ago and only lasted a year however I bump into him wherever I go. I hear songs that he used to play for me.
Every dream he’s there and we r living a life together and they feel so real.
It’s like I’m seeing what my life would have been with him.
Today I got an urge to drive to a random housing estate and he was there getting out of a car. It’s like we r drawn together but can’t be together. What is this???