Video with my girlfriend at night, my girlfriend actually said in front of me that another man was thinking about her … what psychology did she ask?

It may be testing you to see how you react. The purpose of this is that it is possible that she likes that person and wants to break up with you. Of course, another possibility is to tease you, make you jealous, see if you care, and prove to you that she has other suitors besides you and has her own personal charm. So I test you and tell you to cherish her. Otherwise she might leave you. What is the truth? You need to prove it. No matter what the facts are, we should understand them slowly, and don't misunderstand anything and affect our feelings. Bless you.