Saw a Movie by Myself

I saw Doctor Strange 2 by myself. I usually watch movies by myself anyway, I'm used to it.

It was a great movie, had fun, laughed, all that stuff. But after the movie I went to do some shopping and looked out the door to an empty gloomy field and was just HIT with a feeling of loneliness and sadness. I couldn't explain it.

I'm not sure if watching the movie by myself is related, but I don't think it helped.