What is the difference between : " I turned around and saw X" and " I was turning around and saw X" ( Simple past vs past continous)

I would assume the difference is minor, in the former I finished the action of turning around and then saw X. In the latter I saw X while turning around. However one would certainly stop turning, when one sees a familiar face. It would be ridiculous to keep on turning. So the logic in the latter case is somewhat flawed. In addition the use of "and" in the latter case is a mistake, isn't it?

Basically we use "ing" form of verbs (continues or progressive form) to say that we were doing something while another action takes place. EG. I was taking a bath when the telefon rang.

I turned around and saw Mr.X - Simple Past

I was turning around when she asked me. - Progressive

Only "Stative Verbs" as, like, love, agree, and some others would not be used in ing (progressive form) cause they are states/stative and not dynamic.